How long do race ski socks last?

With proper care (cold wash, air dry, rotation between pairs), quality race socks typically last 1-2 seasons of regular training (3-4 days per week). The first thing to go is usually compression—after many wash cycles, the elastane loses some recovery, and the sock feels less supportive. The heel and toe reinforcement zones are the next failure points. Replace socks when you notice compression loss, thinning at high-wear areas, or persistent odor even after washing. Serious racers often replace their primary training pairs annually.