Whistler – Double-X Back Performance One-Piece (Carleton Green 🟢 / Rich Black ⚫)

Whistler is a training-first one-piece with a secure Double-X back that keeps straps in place through sets, starts, and turns. Cut from our signature 100% performance polyester, it resists chlorine, holds its colour, and keeps its shape swim after swim. The streamlined silhouette supports full shoulder mobility with a stay-put, low-drag feel.

• Double-X back: crossed thin straps for a stable, non-slip fit and full range of motion.
• Chlorine-resistant & colourfast: training-grade 100% performance polyester.
• Streamlined silhouette: minimalist front with unrestricted movement.
• Quick-dry comfort: smooth next-to-skin feel from water to deck.

Available colours: Carleton Green 🟢 and Rich Black ⚫.

Materials & Care

• Fabric: 100% performance polyester
• Care: Rinse in cold water after use. Hang to dry out of direct sun. Do not bleach or tumble dry. Avoid rough or abrasive surfaces.

Fit Notes

• Rule of Thumb: if you are used to Speedo sizes, please go up 1 size. Example: Speedo 30 → order 32 with us.
• If you are unsure, please use our Size Chart in the Menu bar or click the “Size Chart” link on the right side of this page.

Designed and manufactured directly by TheSwim Canada (Vancouver-based) with vertically integrated production for consistent quality control.