The GTO NS DermaSensor Baselayer uses a 3D jacquard warp-knit design to pull moisture away from our skin and dry in a flash while we're flying downhill or making another burly climb.

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On the hottest days, we need every trick in the book to stay comfortable on the bike: frozen bidons, pre-soaked cap, frequent shade stops. Castelli's Active Cooling Baselayer adds to our arsenal of hot-weather techniques with innovative fabric to keep our temperature well-regulated through tough...

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The Castelli Bandito Wool Sleeveless Baselayer keeps our core warm during those chilly but not-too-cold rides where a long-sleeve is too much.

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Castelli believes so much in the power of the fabric it uses to craft the Core Mesh 3 Sleeveless Baselayer that it deviated from its usual performance-related fabric monikers and named it Magic Mesh. Before you get skeptical about the fabric's otherworldly name, consider that the brand omitted...

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When we're training and racing during the spring months, the last thing we want is sweat held in fabric, keeping us too cold for the descent back down the canyon. Castelli's Core Seamless Baselayer uses a mix of polyester and polyproylene which wick moisture away from the skin better than...

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Castelli's Miracolo Wool Sleeveless Baselayer keeps our core warm on high-intensity, cool weather rides with its mesh construction made of merino wool, nylon, and elastane. Its minimalist construction is bulk-free, allowing for a comfortable fit beneath our skin-tight jersey.

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The Castelli Pro Mesh 2. 0 Sleeveless Baselayer provides the moisture management we need to keep us dry during cool to mild weather rides. The sleeveless construction and waist hem stay perfectly in place as we ride, making it the perfect base layer for spring riding.

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There are days when you can't decide whether or not to wear a base layer and you waste time with a debate you can't answer. Craft's Cool Mesh Superlight Sleeveless Base Layer answers the question for you. Wear it. This is as minimal as a base layer can be. The top is made of Craft's C017...

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Whether you're setting out for a morning training session, or gearing up for a summer race, the Craft Pro Dry Baselayer provides the perfect foundation for your kit. The ultralight mesh design transfers moisture from body to jersey to wick away sweat, keeping you cool through warm-weather...

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A good base layer is the foundation of any technical layering system. The engineered construction on this garment provides incredible stretch and minimal seams while the varied panels of fabric density delivers extra wicking or warmth where you need it most. This garment uses 3D knit to provide a...

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