The GTO Sock shows us that our feet deserve as much attention as the rest of our riding apparel. Lesser socks will bunch up and stay soaked. The GTO doesn't do that. Its refined design compresses our legs and manages moisture and temperature with ease so that we can focus on the trail ahead.

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Lightly insulated socks for high-intensity riding in the cool conditions of spring and fall, equipped with more insulation at the toe and a higher cuff. The RS Spring Fall socks feature increased insulation on the toe compared to the standard Spring Fall Socks, which is the most critical area to...

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The Castelli Alpha 18 Sock keeps our feet and ankles warm and protected as we continue to put miles in on our bikes during the cold winter. Its merino wool blend and PrimaLoft insulation keep our feet from freezing while also ensuring we don't overheat, thanks to its breathable and...

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For enduring strenuous efforts and for cyclists who never last long without a ride, the Endurance 15 Sock is among our top picks thanks to its lightweight cushioning that offers enhanced foot support. Alongside the underfoot cushioning, Castelli reinforced the toe and heel for durability, making...

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Espresso 12 Sock - Women's

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The Castelli Fast Feet 2 Sock gives us a little less resistance and a lot more comfort when we're pedaling against the clock. The legs' engineered grooves detach airflow to save us energy, and the touch of padding under the ball of our foot helps absorb shock with every stroke.

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Multiple-structure knit to provide the right performance in every part of the sock200-needle construction for extra stretchCompressive midfoot support bandAsymmetrical construction to mirror shape of footCushioning pad under ball of footMeryl Skinlife yarns with silver ions to reduce odor

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The premium sock for comfort and cooling on both long-distance and intense rides.

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The Prologo 15 Sock fights fatigue and heat by stretching over our feet with soft, smooth, and supportive fabric. The airy design ensures it's sleek, so we don't have to worry about fussy bunching or itching.

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Castelli claims the best sock they've ever made for performance cycling is the Rosso Corsa Pro 15 Sock. And, they might be right. It's constructed from multiple-structure knit with extra stretch and a compressive midfoot support band. An asymmetrical construction mirrors the shape of the foot,...

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