Triangle Bikini Set PDF Women's Swimwear Sewing Pattern with halter neck, tie back, adjustable bust, and low rise bottoms. Includes front and back views.
Model wearing Triangle Bikini Set made from PDF sewing pattern featuring halter neck top and low rise bottoms with elastic waist and full lining.
Side view of Triangle Bikini Set sewn from digital pattern, showcasing adjustable halter top and strappy tie back design for women’s swimwear.
Front view of Triangle Bikini Set with halter neck and low rise bikini bottoms, made using knit fabric and fully lined for comfort and fit.
Triangle Bikini Set PDF sewing pattern modeled to show halter neck top, tie back, and elastic waist low rise bottoms in women's swimwear style.
Triangle Bikini Set PDF Women's Swimwear Sewing Pattern featuring halter neck top and tie-back design in black, shown from the back view.
Illustrated front and back views of Triangle Bikini Set PDF Sewing Pattern with halter neck, adjustable bust, and low-rise bottoms.
Size guide chart for Triangle Bikini Top PDF Sewing Pattern with US, UK, EU sizes, bust measurements, and fabric yardage suggestions.
Detailed size chart for Triangle Bikini Bottom PDF Sewing Pattern including waist, hips, leg seam measurements, and fabric requirements.
Extended size guide for Triangle Bikini Top Sewing Pattern with plus sizes, bust measurements, elastic lengths, and fabric yardage info.
Extended size guide chart for Triangle Bikini Set PDF Women's Swimwear Sewing Pattern, includes US sizes 18–32 with bust, waist, hip, and elastic measurements.
    Triangle Bikini Set PDF Women's Swimwear Sewing Pattern with halter neck, tie back, adjustable bust, and low rise bottoms. Includes front and back views.
    Model wearing Triangle Bikini Set made from PDF sewing pattern featuring halter neck top and low rise bottoms with elastic waist and full lining.
    Side view of Triangle Bikini Set sewn from digital pattern, showcasing adjustable halter top and strappy tie back design for women’s swimwear.
    Front view of Triangle Bikini Set with halter neck and low rise bikini bottoms, made using knit fabric and fully lined for comfort and fit.
    Triangle Bikini Set PDF sewing pattern modeled to show halter neck top, tie back, and elastic waist low rise bottoms in women's swimwear style.
    Triangle Bikini Set PDF Women's Swimwear Sewing Pattern featuring halter neck top and tie-back design in black, shown from the back view.
    Illustrated front and back views of Triangle Bikini Set PDF Sewing Pattern with halter neck, adjustable bust, and low-rise bottoms.
    Size guide chart for Triangle Bikini Top PDF Sewing Pattern with US, UK, EU sizes, bust measurements, and fabric yardage suggestions.
    Detailed size chart for Triangle Bikini Bottom PDF Sewing Pattern including waist, hips, leg seam measurements, and fabric requirements.
    Extended size guide for Triangle Bikini Top Sewing Pattern with plus sizes, bust measurements, elastic lengths, and fabric yardage info.
    Extended size guide chart for Triangle Bikini Set PDF Women's Swimwear Sewing Pattern, includes US sizes 18–32 with bust, waist, hip, and elastic measurements.
    Triangle Bikini Set PDF Women's Swimwear Sewing Pattern with halter neck, tie back, adjustable bust, and low rise bottoms. Includes front and back views.
    Model wearing Triangle Bikini Set made from PDF sewing pattern featuring halter neck top and low rise bottoms with elastic waist and full lining.
    Side view of Triangle Bikini Set sewn from digital pattern, showcasing adjustable halter top and strappy tie back design for women’s swimwear.
    Front view of Triangle Bikini Set with halter neck and low rise bikini bottoms, made using knit fabric and fully lined for comfort and fit.
    Triangle Bikini Set PDF sewing pattern modeled to show halter neck top, tie back, and elastic waist low rise bottoms in women's swimwear style.
    Triangle Bikini Set PDF Women's Swimwear Sewing Pattern featuring halter neck top and tie-back design in black, shown from the back view.
    Illustrated front and back views of Triangle Bikini Set PDF Sewing Pattern with halter neck, adjustable bust, and low-rise bottoms.
    Size guide chart for Triangle Bikini Top PDF Sewing Pattern with US, UK, EU sizes, bust measurements, and fabric yardage suggestions.
    Detailed size chart for Triangle Bikini Bottom PDF Sewing Pattern including waist, hips, leg seam measurements, and fabric requirements.
    Extended size guide for Triangle Bikini Top Sewing Pattern with plus sizes, bust measurements, elastic lengths, and fabric yardage info.
    Extended size guide chart for Triangle Bikini Set PDF Women's Swimwear Sewing Pattern, includes US sizes 18–32 with bust, waist, hip, and elastic measurements.
      Triangle Bikini Set PDF Women's Swimwear Sewing Pattern with halter neck, tie back, adjustable bust, and low rise bottoms. Includes front and back views.
      Model wearing Triangle Bikini Set made from PDF sewing pattern featuring halter neck top and low rise bottoms with elastic waist and full lining.
      Side view of Triangle Bikini Set sewn from digital pattern, showcasing adjustable halter top and strappy tie back design for women’s swimwear.
      Front view of Triangle Bikini Set with halter neck and low rise bikini bottoms, made using knit fabric and fully lined for comfort and fit.
      Triangle Bikini Set PDF sewing pattern modeled to show halter neck top, tie back, and elastic waist low rise bottoms in women's swimwear style.
      Triangle Bikini Set PDF Women's Swimwear Sewing Pattern featuring halter neck top and tie-back design in black, shown from the back view.
      Illustrated front and back views of Triangle Bikini Set PDF Sewing Pattern with halter neck, adjustable bust, and low-rise bottoms.
      Size guide chart for Triangle Bikini Top PDF Sewing Pattern with US, UK, EU sizes, bust measurements, and fabric yardage suggestions.
      Detailed size chart for Triangle Bikini Bottom PDF Sewing Pattern including waist, hips, leg seam measurements, and fabric requirements.
      Extended size guide for Triangle Bikini Top Sewing Pattern with plus sizes, bust measurements, elastic lengths, and fabric yardage info.
      Extended size guide chart for Triangle Bikini Set PDF Women's Swimwear Sewing Pattern, includes US sizes 18–32 with bust, waist, hip, and elastic measurements.

      Triangle Bikini Set Sewing Pattern 'Isla'

      $7.99
      $9.99

      A classic triangle bikini set with delicate tie-string straps and a seamless low-rise bottom for minimal tan lines and maximum confidence.

      🗳️ Instant Download PDF Pattern - A0, A4/US Letter, Projector
      👔 Professionally Designed & Tested
      📚 Comes with Step-by-Step Guide and Email support
      📏 Available Sizes: US 02 - US 32 | UK 06 - UK 36 | EU 36 - EU 64
      Difficulty_Matrix_41bfd927-01d0-4fe5-91df-a82cefd9f4d4
      Easy
      Womens_size_chart_20240926_vF

      Description & Styling

      This halter neck bikini set is a timeless essential for every beach lover. The top features classic triangle cups with adjustable tie-string straps at the neck and back, allowing a customizable fit and flattering lift. The bottoms are low-rise and seamless for a smooth, barely-there look with moderate rear coverage. Designed for effortless tanning and sleek beach style, this bikini set is your go-to for sun-soaked days, whether you're poolside or island-hopping.

      Styling:
      Pair this set with oversized sunglasses and a breezy sarong or mesh beach pants for a chic, carefree coastal look. Throw on a white linen shirt and strappy sandals to transition from sand to street.

      Find Your Fit

      The triangle top offers light to moderate support and is best suited for small to medium busts. The tie-back design allows flexibility in fit. The low-rise bikini bottoms hug the hips with a smooth, seamless finish and minimal bulk, ideal for relaxed lounging or casual dips.

      The model is 5'8" with a 35" bust, wearing size S.

      Fabrics and Notions

      Recommended Fabrics:
      Use light weight 4-way stretch knit fabrics with 50-100% stretch, such as nylon spandex scuba, polyester spandex jersey, tricot knit, ribbed swimwear knit.

      Sample Fabric:
      The model is wearing the bikini set made of poly nylon lycra knit fabric.

      Additional Supplies:
      Serger
      Coverstitch Machine
      Elastic 5mm wide

      What's included with this order?

      This download includes:
      • Sewing guide with instructions (print or read on device) 
      • Print at home PDF pattern (A4 and US Letter) 
      • Copy shop PDF pattern (A0)to print at a printer shop or from an online printer
      • Projector pattern that you can use with any projector
      Sewing Guide Features
      • Easy to follow instructions with step-by-step illustration 
      • Specification sheet for available sizes
      • Checklist for required fabrics and supplies
      • Guidance for efficient fabric spreading and cutting
      PDF Pattern Features
      • Sizes
        1. US 02 - US 32
        2. UK 06 - UK 36
        3. EU 36 - EU 64
          We have two size charts with an overlapping size 18. Please check the size chart for accurate measurements before picking your size. 
      • Seam allowance included (in separate layer, giving the option to modify the pattern at your will) 
      • Layered PDF (you can print one size at a time) 
      • Includes both inches and cm - no converting required
      PDF Pattern Help

      Tutorials and Resources

      360_F_130741534_hXTyDxAWDac8UPvkEdKxu8dPathgPBiw_d3f84a11-73ff-4e5c-8f69-f03048cb0096
      30 - Days Guarantee: We are confident you will love this Sewing Pattern. If you are not completely satisfied, contact us within 30 days for a full refund - no questions asked. 

      Why Sewists Love Winslet's Pattern

      • BFTMbTL6yhgTPGJQ

        Instant Digital Download

      • AFfx6o8LM4PohXHp

        A4/Letter, A0 and Projector files

      • OidgMd905xRpiSKR

        Wide Range of Inclusive Sizes

      • 6jMXkwUzawMVhgAG

        Beginner Friendly Instructions

      • mdqPkuBx9QrJXs7u

        Professionally Tested Designs

      • CRVDh9JAOLnAlyHD

        Dedicated Support

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       Triangle Bikini Set Sewing Pattern 'Isla'

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      Specifications Table

      Basic Design Block

      Woman with the following measurements: height 5'6", bust 34", and waist 28", corresponding to size S on our size chart.
      From there, the patterns are graded both up and down to accommodate various sizes

      Style and Fit

      A classic triangle bikini set with delicate tie-string straps and a seamless low-rise bottom for minimal tan lines and maximum confidence.

      Skill Level / Sewing Difficulty

      Easy

      Sizes

      US 02 - 32 | UK 06 - 36 | EU 36 - 64

      Formats

      A4/Letter (print at home), A0 (copyshop), Projector files

      Files included

      • Sewing Guide with easy to follow instructions with step-by-step illustrations Instructions
      • Print at home PDF A4/Letter Pattern
      • Copyshop PDF (A0) pattern
      • Projector Pattern
      • Fabric Layout (in Sewing Guide)
      • Yardage requirements (in Sewing Guide)

      Fabric Type - Knit or Woven?

      Knit

      Fabrics and Notions

      Recommended Fabrics:
      Use light weight 4-way stretch knit fabrics with 50-100% stretch, such as nylon spandex scuba, polyester spandex jersey, tricot knit, ribbed swimwear knit.

      Sample Fabric:
      The model is wearing the bikini set made of poly nylon lycra knit fabric.

      Additional Supplies:
      Serger
      Coverstitch Machine
      Elastic 5mm wide

      Seam Allowance

      Included in Pattern

      How Much Time will it take to sew this?

      The Isla Triangle Bikini Set is an easy-level project designed with clean, straightforward construction, making it suitable for confident beginners working with stretch fabrics. The main focus is on accurate elastic application, neat strap finishing, and achieving a secure yet comfortable fit for swimwear.

      * Beginner sewists: approximately 3–4.5 hours
      * Intermediate sewists: approximately 2–3 hours

      Best Seasons and Months to Sew this

      The Isla Triangle Bikini Set is ideal for warm-weather sewing and works best in swimwear fabrics such as nylon spandex or polyester blends with good stretch and recovery. It is perfect for summer wardrobes, vacation sewing, and preparing for beach or pool seasons.

      * Best seasons: Late Spring and Summer

      Ideal months:
      * Northern Hemisphere: May–September
      * Southern Hemisphere: November–March

      Occasions this pattern is most ideal for

      The Isla Triangle Bikini Set is ideal for:
      * Beach vacations and resort wear
      * Poolside lounging and swimming
      * Summer holidays and travel
      * Layering under swim dresses or cover-ups

      Its classic triangle design makes it a timeless swimwear piece that can be customized through fabric choice, color, and strap styling for both minimal and statement looks.

      Model Size

      The model is 5'8" with a 35" bust, wearing size S.

      Garment Fit

      The triangle top offers light to moderate support and is best suited for small to medium busts. The tie-back design allows flexibility in fit. The low-rise bikini bottoms hug the hips with a smooth, seamless finish and minimal bulk, ideal for relaxed lounging or casual dips.

      Yardage

      Garment Measurements

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      Got Questions? We're Here to Help!

      How do I download my purchased sewing pattern?
      You can download your sewing patterns by following any one of the following methods: 
      • Once you purchase a pattern, you will receive the option to download the patterns after checkout.  
      • In case you are unable to download at checkout, you will receive an email with the download links. This link will be sent to the email address you provided during the ordering process. Simply follow the link provided in the email, and you'll gain immediate access to the available files for instant download.  
      • Log in to your account and download the patterns from your account.   
      If you are facing any issues downloading your purchased patterns, just write to us at support@winslets.com or use the chat function on the home page and we’ll get you sorted.
      Do you offer physical copies of the patterns or are they all digital downloads?
      Currently, all Winslet's patterns are digital patterns only. They are available in A0, A4/Letter sizes and Projector files. 
      • The A0 sizes are the copy shop versions and can be printed at a copy shop near you. 
      • The A4/Letter sizes are easy to download, print and put together.
      • The Projector files can be directly projected onto the fabric for easy cutting.
      Are there any restrictions on how many times I can download the pattern?
      Each purchased product will give you access to its associated files, including different formats of the sewing pattern and instructions. To address potential download issues and provide flexibility, we allow each file to be downloaded up to 5 times. If you need to download it more than 5 times, just send us an email and we’ll sort it out for you.
      What if I encounter difficulties with downloading or opening the pattern files?
      If you face any issues with accessing the product post purchase, just reach out to us at support@winslets.com for assistance.
      What are the terms of use for the sewing patterns?
      Winslets’ patterns are copyrighted. You may not edit or recreate this pattern to sell.

      You cannot distribute this pattern to others.

      You may not mass produce this pattern or clothing made using it. However, you are welcome to sell the garment you stitched using Winslet's patterns. Giving credit to the pattern when selling would be appreciated, but not required.
      Do you offer refunds or exchanges for purchased patterns?
      Once you wrap up your order, we'll email you the digital goodies and you can also grab them straight away from your account for immediate download. Keep in mind, our PDF sewing patterns can't be returned once they're sent your way. However, please reach out to us if you have any concerns with the product, your satisfaction is our top priority. Once you download a product from our website, it remains yours indefinitely. We recommend checking your order history before making a purchase to ensure you do not accidentally buy a duplicate item. If you do purchase the same pattern again, or if you encounter any other issues, please contact our support team at support@winslets.com, and we will assist you promptly.
      What are the measurements that Winslet’s Patterns are designed for?
      Our sewing patterns are initially designed based on a basic block drafted for a woman with the following measurements: height 5'6", bust 34", and waist 28", corresponding to size S on our size chart. From there, the patterns are graded both up and down to accommodate various sizes.
      How do you define your pattern Skill Levels?
      To ensure consistency in defining the skill levels of our sewing patterns,we have created a matrix to help you understand why we have assigned specific levels to each product. For detailed information on how we define our pattern skill levels and why certain patterns are categorized as such, please refer to the provided matrix.
      How do I figure out the right size?
      Before selecting a pattern size, take accurate measurements of your bust, waist, and hips. Choose the size from our chart that closely aligns with your measurements. 
      If your bust/waist/hip measurements align with different sizes, you would want to choose the size based on the apparel category or the garment fit and make adjustments to blend sizes. For example, prefer the size based on your bust measurement for making a top, and waist measurement for a relaxed dress cinched at the waist. 
      If your measurements fall between sizes, consider the fit you prefer (looser or tighter) and the type of fabric you'll use, as some fabrics have more give. All patterns include finished garment measurements which can be helpful to know how much ease or extra room is built into the design.
      Description

      This halter neck bikini set is a timeless essential for every beach lover. The top features classic triangle cups with adjustable tie-string straps at the neck and back, allowing a customizable fit and flattering lift. The bottoms are low-rise and seamless for a smooth, barely-there look with moderate rear coverage. Designed for effortless tanning and sleek beach style, this bikini set is your go-to for sun-soaked days, whether you're poolside or island-hopping.

      Styling:
      Pair this set with oversized sunglasses and a breezy sarong or mesh beach pants for a chic, carefree coastal look. Throw on a white linen shirt and strappy sandals to transition from sand to street.

      Frequently Asked Questions

      • What are halter neck sewing patterns?

        Halter neck sewing patterns are templates designed to create tops or dresses that fasten or tie behind the neck, leaving the shoulders and upper back exposed. They are crafted to provide elegant support for the bust while highlighting the open neckline.

      • Are your halter neck sewing patterns beginner-friendly?

        Yes, many of our halter neck sewing patterns are beginner-friendly, especially the simpler designs. We provide clear step-by-step instructions and construction techniques, making them approachable even for novice sewists.

      • What types of fabric are best for halter neck garments?

        The ideal fabric depends on the design. Lightweight woven fabrics like cotton, linen, and chiffon work well for flowy halter dresses, while stretch knits such as jersey are perfect for fitted halter tops that require flexibility and comfort.

      • Can I adjust the halter neck patterns for a better fit?

        Absolutely! Our halter neck sewing patterns are designed to be customizable. You can adjust them at the bust, waist, or length, as well as modify strap lengths, to achieve a tailored fit.

      • Are Winslet's halter neck patterns suitable for formal occasions?

        Yes, halter neck styles can be elevated for formal events. With the right fabric, such as satin or silk, you can transform a halter dress pattern into an elegant garment suitable for evening wear or special occasions.

      • What formats do your halter neck sewing patterns come in?

        Our halter neck sewing patterns are available in multiple file formats, including A4/Letter for home printing, A0 for copy shops, and projector-friendly files, allowing for flexibility with your sewing setup.

      • Do your patterns include detailed instructions?

        Yes, every Winslet's halter neck sewing pattern comes with comprehensive instructions, including clear diagrams and step-by-step guidance, ensuring sewists of all skill levels can complete their projects with confidence.

      • Can I customize the halter neck patterns?

        Yes, our halter neck sewing patterns are designed to be versatile. You can adjust lengths, choose different fabrics, and modify strap styles to create unique garments that reflect your personal style.