Finis Thermal Swim Shirt

Stay warm and swim stronger with the FINIS Thermal Swim Shirt — engineered for serious swimmers who train in cold water or need an extra layer of warmth without sacrificing performance.

Constructed from FINIS's proprietary BiPoly fabric — featuring Nobel Prize-winning Polyolefin fibres — the Thermal Swim Shirt traps body heat close to the skin while remaining incredibly lightweight and flexible. It conforms to your upper body for a streamlined fit that won't restrict your stroke or range of motion.

Key Features

• BiPoly Thermal Fabric — traps body heat to keep you warm in cold water conditions
• UPF 50+ Protection — blocks UVA and UVB rays for open water and outdoor pool training
• Antibacterial Treatment — stays fresh session after session
• Chlorine & Fade Resistant — built to withstand regular pool training
• Slight Drag Effect — builds endurance and upper body strength over time
• Lightweight & Flexible — full range of motion for all four strokes
• Available in adult sizes (S–XL) and youth sizes (XS–L)

Whether you're training in an outdoor pool, open water, or a cold indoor facility, the FINIS Thermal Swim Shirt is the ideal base layer to extend your sessions and improve your performance.