Cold Weather System Socks Lorpen's Cold Weather System socks include both an outer sock and an inner liner for ultimate warmth. Height: Over-Calf Cushion: Outer: Full Cushion - Medium; Inner: Ultralight Composition: Outer: 37.5% Merino, 37.5% Acrylic, 15% Nylon, 10% Lycra; Inner: 75% Merino, 15% Nylon, 10% Lycra

Lycra® Adaptability This fiber has the best zero-point elasticity and is the only fiber that conserves its characteristics forever. Lorpen socks are the only technical socks that include Lycra® throughout their entire structure. No creases, no abrasion, no blisters.

Extra Flat Toe Seam Our toecap mesh joins each stitch up with its partner on the other side without creating a traditional seam line or those bothersome ridges that can hurt your toes.