The Combat Quarter Socks are built for both training and racing. Featherlight, ultra-breathable performance comfort, and so thin you’ll feel fully in sync with your shoes. With a snug, soft, blister-free fit made to last, they’re the socks that never bail on you. Warmth: 1/5 Breathability: 5/5 Cushioning: 1/5 Features Weight: 100 g 69% Polyamide 21% Polyester 8% Elastodine 2% Elastane Ultra-thin, featherlight performance yarn. Breathable mesh zones for maximum ventilation. Snug fit and soft touch for comfort. Arch compression for secure support. 3D heel & seamless toe for a blister-free fit. Durable construction for high-mileage use. Wash before first use for best performance. Sizing The socks are available in S-M and M-L. S-M: US 4-7 / EUR 35-39 / UK 3-6.5 / JAP 21.5-25 Height of sock: 9 cm / Low-calf M-L: US 7.5-11.5 / EUR 40-45 / UK 7-11 / JAP 25.5-29.5 Height of sock: 9 cm / Sous le mollet