The Sleeveless Reaction is purpose built for the most efficient swim while keeping you cooler in warmer water. Matching the redesigned Reaction wetsuit, the Sleeveless Reaction takes all the key performance upgrades and removes the full sleeves. This allows better heat regulation to keep your...

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High-speed road racing and the BTW Speed Suit go hand-in-hand. It's designed to be the fastest option out there from Castelli, and it features a smooth body with dimpled shoulder and sleeve fabric for improved aerodynamics. A Progetto X2 Air seamless seat pad enhances comfort and support, and two...

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The Castelli Men's Core Spr-Oly Suit assists triathletes with comfortable support suitable for short-distant racing. Its Endurance Evolution fabric feels light and surprisingly supportive, and reduced seaming ensures chafe-free comfort whether you're swimming or cycling. Castelli lined the suit's...

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Swimming, cycling, and running are what the Elite Speed Suit is made for. Castelli's engineered stretch woven fabric keeps us feeling as fast as possible on each leg of our race, and a saddle liner provides protection without the risk of chafing in long-distance time trials. This suit offers...

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DON'T TAKE OUR WORD FOR IT Internal testing by the German Triathlon Federation (DTU) shows that this is the fastest swimming tri suit they've ever tested. Then Castelli adds the aero speed on the bike and run. You'll get to the finish line faster. The secret is in Castelli's unique engineered...

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Castelli updates their distance triathlon suit with new fabrics and refined fit. The Free Sanremo 2 Suit capitalizes on research that went into its predecessor as well as the Castelli PR Suit to bring you aerodynamic advantage and a fit that feels comfortable through each leg. A snug fit layers...

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Castelli's Free Sanremo suit just went sleeveless. The Free Sanremo 2 Sleeveless Tri Suit is replete with features to make it a top-notch all-around distance race suit for those who are serious about triathlons. On-bike aerodynamic advantages promote speed, and everything else down to the GIRO4...

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Engineered for speed, the Castelli PR 2 Speed Suit features optimal aerodynamics and superior all-day comfort for half and long-distance triathlons. The upper body features a smooth, lightweight 50d fabric, with the bottom half using a Premio-based fabric to improve aerodynamics in any condition....

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The FR-C Pro Short Sleeve Doppio Tri Suit is inspired by the aero work done by professional road racers. The Doppio is a cross between a skin suit and separate jersey and shorts, taking the aerodynamics of the former and the comfort of the latter. The ridged fabric on the sleeves and front torso...

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Louis Garneau's Spring Tri Suti is a budget triathlon suit built for performance as we're just dipping our toes into triathlons. With quick-drying fabric and a built-in chamois, we're setting PR's in every discipline at our next tri. The chamois is built to dry extremely quickly, reducing...

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