Women's 2026 Castelli Free Sanremo 3 Sleeveless

The Women's Castelli Free Sanremo 3 Sleeveless Tri Suit (2026 model) is Castelli's flagship high-performance one-piece triathlon suit, evolved from the iconic Sanremo line for long-distance racing in hot conditions—think Ironman Kona or summer 70.3 events.

This sleeveless design prioritizes maximum ventilation and freedom of movement with lightweight, highly breathable Velocity Rev2 fabric on the main body for superior moisture wicking and cooling. The back features Velocity mesh for exceptional airflow, while CFD-optimized fabric placement and seam construction minimize drag for aero gains on the bike. Standout features include an integrated internal neck pocket for stuffing ice cubes to combat heat (a game-changer in scorching races), a full Sanremo-style front zipper for easy ventilation and quick transitions, the proven KISS Tri seat pad for comfort over long efforts, and a race-fit cut that supports all three disciplines without restriction. Additional perks: engineered for women-specific ergonomics, durable construction, and quick-drying performance.