Engineered from Speedo's exclusive, longest-lasting, best-selling Endurance+ fabric, the Solid Endurance+ Thin Strap Swimsuit is 100% chlorine resistant and designed to last 20 times longer than conventional swimwear fabrics. Four-way stretch delivers a body-hugging fit with great shape retention, while thin straps minimize tan lines and front and back liners add confident coverage. Exclusive Endurance+ fabric — 100% chlorine resistant Lasts 20x longer than conventional swimwear fabrics Four-way stretch: body-hugging fit, great shape retention, soft comfort Resists sagging and bagging — fits newer, longer Thin straps for minimal tan lines; excellent support and freedom of motion Front and back liners; fabric: 50% Polyester / 50% PBT COMFORT — Four-way stretch and soft Endurance+ fabric stay comfortable through daily laps and lessons. PERFORMANCE — Thin straps keep shoulders free for a full, unrestricted stroke. DURABILITY — 100% chlorine-resistant Endurance+ outlasts conventional fabrics 20 times over.