Socks

- Merino wool blend for warmth and durability - Thin construction like a summer sock for a close fit in the shoe but with Merino wool for warmth - 18 cm cuff

- Merino wool blend - Terry loop knit underfoot for padding and extra warmth - 18 cm cuff

- 200-needle construction for extra stretch - Bioceramic yarns for all-day comfort - Under-foot cushioning - Reinforced heel and toe - Midfoot support band

Castelli's Fast Feet project: aerodynamic foot coverings for every condition. The Fast Feet Sock provides an aero advantage for road racing when it's too warm for the faster shoecovers. We take the leg portion of our TT shoecover and stitch it to our most comfortable sock for in-shoe comfort. It's the same as the aero sock we supply to Team Sky, and it's a riders' favorite. Also available for customization in our Servizio Corse program. Product Features - Castelli's Fast Feet project – for road riding in warm conditions - The sock portion is based on Castelli's Rosso Corsa sock for in-shoe comfort - The leg portion is constructed with engineered grooved Lycra to help detach airflow - 10°-30°C / 50°-86°F - Weight: 45g

- Winter-weight merino wool blend - Arch-support band - Nylon heel and toe for durability - 15cm height

- 200-needle construction for extra stretch - Q Skin yarns with antimicrobial silver ions to reduce odor - Piqué ankle knit - Reinforced heel and toe - Midfoot support band - 15 cm height

- Merino wool blend - Nylon-reinforced heel and toe - 18 cm cuff

- 200-needle construction for extra stretch - Lightest mesh ankle and top of foot for hot-weather comfort - Midfoot support band - Meryl Skinlife yarns with antimicrobial silver ions to reduce odor

- 200-needle construction for extra stretch - Lightest mesh ankle and top of foot for hot-weather comfort - Midfoot support band - Meryl Skinlife yarns with antimicrobial silver ions to reduce odor

- Q skin yarns with antimicrobial silver ions to reduce odor - Pique ankle knit - Reinforced heel and toe - Midfoot support band