Flutter Sleeve One-Piece Swimsuit PDF Sewing Pattern for Women's Sizes 32-52 EU / 4-24 US

Flutter Sleeve One-Piece Swimsuit - Digital Sewing Pattern

Available in English and French

Sew Your Own Elegant and Feminine One-Piece Swimsuit
Designed for comfort, structure, and romantic style, the Flutter Sleeve One-Piece Swimsuit sewing pattern lets you create a refined swimsuit with delicate details and a clean silhouette, ideal for beach days, poolside lounging, or your next summer getaway.

This design features flowy raw-edge flutter sleeves and a cut-out waist, connected by self-made spaghetti straps for a unique and flattering effect. The soft leg curve subtly elongates the legs, while the wide neckline enhances the bust without adding volume. Like the rest of the collection, the pattern is fully lined with enclosed seams and no visible stitching, for a sleek and professional result both inside and out.

The Flutter Sleeve Swimsuit is perfect for intermediate sewists ready to challenge themselves with techniques such as clean, bagged-out construction and elastic application. Whether sewn in classic black or playful prints, this swimsuit is made for creative customization and a truly polished finish.

Pattern Features:
✔ Included Sizes: EU 32-52 /US 4-24

✔ Skill Level: Intermediate

✔ Pattern Details:
• Detailed Step-by-Step Instructions – Fully illustrated and easy to follow
• Fabric Recommendations: Designed for stretch swimwear fabrics such as nylon spandex or Lycra (150–300 g/m² [4.4–8.8 oz/yd²]) for the main fabric, paired with a lighter stretch lining (70–100 g/m² [2.1–2.9 oz/yd²]) specifically made for swimwear. Ensure all fabrics are chlorine-, salt-, and UV-resistant. Choose solid, printed, or textured materials with at least 90% stretch (10 cm should stretch to 19 cm / 4 in to 7.5 in). Avoid thick linings with heavier main fabrics.
• Elastic Guide: This pattern uses rubber swimwear elastic: 8 mm (5/16 in) elastic for leg openings, armholes, and neckline (inserted with fully enclosed seams).

✔ Shopping List:
• Nylon spandex: 0.95 m (1.04 yd)
• Stretch lining: 0.50 m (0.55 yd)
• Rubber elastic: 5.20 meters (5.69 yards)

What You’ll Receive:
✔ Digital Sewing Pattern in PDF Format – Includes A4/US Letter and A0 formats for easy printing
✔ Comprehensive Sewing Guide – Covers assembly, fabric recommendations, and professional finishing techniques
✔ Size Chart – To ensure the perfect fit

Elevate your swimwear wardrobe with the Halter Keyhole One Piece pattern, designed for comfort, performance, and modern style. Whether you're sewing for active days or aiming for a sleek, fashion-forward look, this pattern lets you create a high-quality piece that fits both your body and your personal aesthetic.

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⛔️ It is strictly prohibited to resell or copy these digital patterns. They are protected against any modification by any software. Daisy is a registered trademark, and legal actions may be taken in case of infringement. Additionally, it is also forbidden to resell these patterns in physical printed form.

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🌼I am fully supportive of small shops selling homemade models from my patterns, provided that they are physical and unique creations. This practice supports craftsmanship and independent creation, values that I hold dear.

🌸If you encounter any issues during the design process, please do not hesitate to contact me by message. I am here to help and guide you through each step of your sewing project.