Castelli Thermolite 9 Winter Socks

Packed with technology, stylish and lightweight, Castelli Thermolite 9 socks are high-performance socks designed for autumn and winter rides, when temperatures fluctuate and you need socks that can withstand any weather. Their warmth comes from the inner Thermolite® construction, a fabric made from hollow-core polyester fibres that provide insulation and breathability. Durable, waterproof Meryl Skinlife® fabric is designed to wick moisture away from the foot and also helps keep the socks lightweight. A 9-centimetre cuff offers protection and a professional look. A supportive sock with a midfoot support band that gives you confidence and ensures comfort throughout your ride.

An eye-catching design with Castelli lettering and a band around the cuff, a coloured heel and a highlighted midfoot band featuring the distinctive Castelli scorpion logo.

Castelli’s roots lie in Vittore Gianni’s tailoring shop, founded in Milan in 1876; Maurizio Castelli created the scorpion brand in 1974. Today it is based in Fonzaso and makes clothing for your rides, from jerseys to shorts. In 1977 it introduced aerodynamic Lycra shorts, used in racing and sold to the public.