Trillium Bikini PDF Sewing Pattern

Make your own adjustable bikini top for pole, dance, swim, festivals or your handmade stretchwear wardrobe.

The Trillium Bikini is a sparkly little staple with a clean triangle-cup front and an adjustable T-bar back feature. It’s minimal, flattering and easy to customise — the kind of pattern you can make in soft swim lycra for everyday wear or full sequin fabric for stage-ready drama.

The step-by-step tutorial walks you through sewing the Trillium in sequin fabric, making it perfect if you’re ready to get more confident with sparkly stretch materials while still having visual support as you sew.

What’s included

• A4 print-at-home PDF pattern
• US Letter print-at-home PDF pattern
• A0 copyshop PDF pattern
• Layered sizing
• Sizes XXS–XXXL
• Quick start guide
• Detailed video tutorial using sequin material
• Fabric and cutting guidance

Skill level

Designed for confident sewists who are comfortable sewing stretch fabrics or ready to build their skills with step-by-step visual support.

Fabric suggestions

Best made in stretch fabrics like swim lycra, dancewear lycra, stretch velvet, stretch sequin fabric, holographic lycra, stretch lace or performance stretch fabrics.

Make it your way

Sew it in sequins for the stage.
Make it in swim lycra for beach days.
Try stretch velvet for a softer luxe feel.
Play with contrast straps, rings, sliders or crystals.
Pair it with matching handmade bikini bottoms.

Because you don’t need to buy what brands sell — you can make it yourself.

This is a digital PDF sewing pattern sent straight to your email