Wind tunnel tested calf sleeves to complete your aero-optimized race-day setup.

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Castelli was an early pioneer of water-protective thermal fabrics, having recognized just how beneficial they are for cycling applications. Don't assume these knee warmers are exclusively for rainy rides on wet roads, however, as the water-repellent fabric is also highly breathable, making them a...

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A good pair of leg warmers will give you that extra bit of warmth you need to stay comfortable on chilly spring and fall rides, but unlike full-length tights, you can easily slip them off and stow them in a jersey pocket when cold mornings transition into mild afternoons. These particular warmers...

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Don't try to put these knee warmers in a box because Castelli crafted this versatile design with cold days and long rides in mind. These Pro Seamless Knee Warmers are strikingly warm without causing overheating, and their lightweight, seamless fabric promotes moisture management and eliminates...

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In that sweet spot between fall and winter you know there's going to be that cold gust of wind at the top of the canyon, so pull on Castelli's Pro Seamless Leg Warmers for added warmth when you need it most. Mid-weight and seamless, these warmers will keep your legs cozy when you're too stubborn...

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The Castelli Thermoflex 2 Arm Warmers are designed to take some of the sting out of cold-weather cycling while remaining as comfortable and secure as possible. The Thermoflex fleece fabric is warm and stretchy with a soft brushed interior, and offers surprising wind resistance and moisture...

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Throw on your favorite bib shorts and grab a set of the Castelli Thermoflex 2 Knee Warmers and enjoy a bit of extra protection from the cold when you're cycling in the shoulder seasons. The Thermoflex fleece fabric is warm, stretchy, and soft, and is constructed using flat-lock seams in order to...

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Castelli updates their Thermoflex Leg Warmers to make them even more comfortable for those cold weather rides, when shorts are too cold but tights too much. Our legs need to stay warm to pedal most effectively, and the brushed fleece of the Thermoflex 2 keep them insulated against the cold, while...

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Protect your pins from sunburn and airborne allergens in the Castelli UPF 50 Plus Light Knee Skins. Fashioned from breathable, polyester-based Solare fabric, these lightweight knee skins provide protective coverage without risk of overheating when things get fast. Double-sided silicone elastic at...

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The Solare fabric used in Castelli's UPF 50 Plus Light Leg Sleeves is a synthetic blend with a polyester base, so the Sleeves wick moisture and breathe like a more efficient layer of second skin. Unlike the actual skin they protect, though, the UPF 50 Plus Leg Skins protect against the harmful...

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