Made from 100% post-consumer polyester from recycled plastic bottles, this sock provides a nice amount of warmth without adding bulk. A great sock for the fall or early spring. 100% post-consumer recycled polyester yarnMidweight construction to provide warmth without bulk18 cm cuff

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,...

Castelli's Rosso Corsa Pro 9 Sock features an ultralight blend of Meryl Skinlife yarns that wicks moisture fastidiously throughout your ride, warding off chafing and blisters whether you're on-course or pedaling just to enjoy the views. Cushioning and compression keep our blood moving and our...

Piqu ankle knitReinforced heel and toeMidfoot support band12 cm height

Castelli's Superleggera 12 Sock features a minimalist design and performance-oriented features for cyclists who are serious about riding and racing. An ultralight diaphanous mesh ankle keeps us cool when the mercury rises, and a midfoot support band is compressive and comforting. We'll be riding...

Whether we're training for race day or hitting a group ride in one of the many canyon roads in our backyard, we pull on the Superleffera 18 Socks for their lasting comfort in warm weather. Castelli uses their lightest construction in the ankle area for optimal breathability, with 200-needle...

Performance sock with extra cushion for added comfort.

You might have to replace your tires and jerseys as the miles press on, but the Castelli Unlimited 18 Sock is... well, unlimited. It's a surprisingly durable sock for how thin and soft it feels. We appreciate the anti odor silver ions that make sure the sock doesn't end up smelling like our...

Merino wool blendArch-support bandNylon-reinforced heel and toe15 cm cuff

We built the Competitive Cyclist Race Day Sock with Giordana's Meryl SkinlifE fabric designed to provide and promote circulation, temperature regulation, and long-lasting durability. These lightweight socks are perfect for the everyday rider, keeping us cool and comfortable as we ride through the...