Castelli superleggera t 12 cycling socksthanks to their 200 needle construction, the castelli superleggera t 18 cycling socks offer a beautifully snug fit'. '.strtoupper('t')he 18cm cuff length gives a calf length fit that is fresh and modern.made from lightweight merylreg skinlife yarns and featuring mesh zones over the top of the foot and ankle, the superleggera t 18 cycling socks excel in the heat of summer'. '.strtoupper('a') mid foot support band enhances comfort while antimicrobial silver ions prevent the build up of odours when the going gets sweaty.featuresmaterials 85% polyamide, 15% elastane200 needle construction for extra stretchlightest mesh ankle and top of foot for hot weather comfortmidfoot support bandmerylreg skinlife yarns with antimicrobial silver ions to reduce odour18cm cuff lengthbuy castelli clothing from chain reaction cycles, the world's largest online bike store.