Thick model socks for all season climbing. Made of nylon and unshrunk, natural merino wool nylon merino spun yarn. It does not get stuffy even during long periods of time and is resistant to becoming too much stuffy and will withstand long-term expeditions. Provides a stress-free hold, comfortable fit and support. They provide superior dry feeling and extra comfort that ordinary wool socks cant match. Size (Approx.): XS size: 8.7 - 9.1 inches (22 - 23 cm); S size: 9.3 - 9.6 inches (23.5 - 24.5 cm); M size: 9.8 - 10.2 inches (25 - 26 cm); L size: 10.4 - 11.0 inches (26.5 - 28 cm); Weight: 2 cm); Weight: 2 oz (2 oz (2 cm); Weight: 2 oz (8 oz (8 cm); Material: 2 oz (8 g). Material: 5 oz (8 g). Material: 5 g). Repeated friction, hook hook hook and loop or branch, contact with hard objects may cause damage to the fabric.