Ideal for cyclists who want comfortable, mid-weight insulation and extra ankle coverage for chilly rides without overfilling their cycling shoes.
The COMO 20 Thermal Sock is a dependable choice for cold-weather cycling, winter training and chilly morning commutes. Its mid-weight construction brings useful insulation while remaining comfortable in a cycling shoe, making it a practical step up from a lightweight summer sock without the bulk of a heavy winter warmer.
The key to its performance is PrimaLoft® synthetic yarn, which helps retain warmth while transferring moisture away from the foot. That combination helps keep your feet warmer and drier as the ride gets longer or your effort increases.
A 20 cm cuff adds extra coverage around the ankle and lower leg, while the regular fit gives you a natural, non-restrictive feel. Choose the COMO 20 when you want straightforward thermal comfort, good moisture management and a streamlined fit that works with snug cycling shoes.
PrimaLoft® synthetic yarn
Helps keep your feet warm while transferring moisture for a more comfortable ride.
Mid-weight construction
Adds useful insulation without creating unnecessary bulk inside your cycling shoes.
20 cm cuff
Provides extra coverage around the ankle and lower leg when temperatures drop.
Regular fit
Offers a natural, comfortable feel without restrictive pressure.
Cycling-shoe friendly
Designed to fit comfortably inside a snug cycling shoe.
Moisture management
Helps move moisture away from the foot during longer or harder rides.
Men’s cycling sock
A dedicated thermal cycling sock available in S/M, L/X and XXL.
General
Materials & construction
Sizing
PrimaLoft® yarn
Synthetic PrimaLoft® yarns help keep your feet warm while transferring moisture for a more comfortable ride.
CASTELLI ACCESSORIES is a cycling accessories range associated with performance-focused clothing and equipment for road cycling, training and everyday riding.
The range includes cycling socks and other apparel designed around comfort, weather protection and practical performance. Its product presentation emphasises Italian innovation and use by cyclists across training, racing and leisure riding.
