Jalie
Jalie - Paper Sewing Pattern - One-Piece Swimsuits
Jalie - Paper Sewing Pattern - One-Piece Swimsuits
Jalie One-Piece Swimsuits
The Jalie 3350 One‑Piece Swimsuit Sewing Pattern is your go-to for versatile, stylish swimwear suitable for all ages. Choose between two design variations tailored to different tastes:
View A features a sweetheart neckline and contrast under-bust band that accentuates the bustline. It’s fully lined in front and has a chic open back secured with a clasp - perfect for fashion-forward makers.
View B offers a sophisticated twist-front bodice with a completely closed back for a clean, streamlined look.
Both styles are designed for four-way stretch swim fabrics like Lycra or spandex (60% minimum stretch horizontally and vertically), ensuring a snug fit and freedom of movement
The front lining allows for the insertion of swim cups, adding optional bust support. Create a comfortable and polished fit by choosing between fixed or adjustable straps. With a pattern that encompasses 27 sizes, ranging from children's to women’s 2X (US size 22), you can make coordinated swimsuits for your family - ideal for matching sets or gifting.
The instructions offer clear guidance on sewing stretch swimwear, with detailed elastic placement and optional adjustable strap hardware. Jalie’s precise drafting ensures a flattering fit with features like princess seams, a defined underbust band (View A), and smooth twist detailing (View B) for confident swimwear that fits beautifully and lasts.
Pattern's Features:
- Two style options: View A: Sweetheart neckline, contrast under‑bust band, lined front, open back with clasp - View B: Twist‑front design, lined front, clean, closed back
- Fully lined front; ability to insert swim cups for extra shaping
- Fixed or adjustable strap options
- Multi-size pattern including 27 sizes from girls’ age 2 to women’s 2X (size 22)
Skill level: Advanced
Size Range: 27 sizes from girls’ age 2 to women’s 2X (size 22)
Suggested Fabrics: Swimwearspandex with at least 60% stretch across the grain and in the length
At Truro Fabrics we're a small, family-run business in the heart of Cornwall, UK. We love compiling our carefully chosen fabric collections and sharing beautiful products with our customers. All orders are lovingly wrapped in recycled tissue and re-purposed packaging, ready to arrive and be made into exciting creations.
Share
Standard UK Delivery
- Orders over £50 — FREE
- Orders under £50 — £4.99
- Same day dispatch on orders placed before 2pm (Mon–Fri)
- Delivered within 2–5 working days via Royal Mail or DPD
Express UK Delivery
- £6.99 — next working day on orders placed before 2pm (Mon–Fri)
International Delivery
- Europe from £8.95
- Rest of World from £12.95
For full details please visit our Delivery & Returns page.

Shop for fabric
-
Double Gauze Fabric by the Metre
Soft and Breathable Double Gauze Fabrics Our collection of 42 cotton double...
-
Affordable Linen Fabric by the Metre
Quality Linen Fabric for Sewing Projects Truro Fabrics offers a wide selection...
-
Jersey Knits
Soft and Stretchy Knits for Every Project Our jersey knits collection offers...
-
Gingham Fabric by the Metre
A Variety of Gingham Styles and Colours Discover our collection of over...