MICROspikes

Features Twelve 3/8 in. hardened stainless-steel spikes per foot dig into icy terrain Reinforced eyelets increase durability Integrated toe bales hold spikes securely in place Elastomer harnesses are 38% lighter than the previous version; harnesses stay supple to -22°F (-30°C) Stainless-steel flex chains help prevent snowballing Heel tabs for easy on / off Tote sack included Backpacker magazine Gear Hall of Fame (2017) Sizing for hiking boots is as follows: Small fits Women's shoe sizes 6 - 9 / Men's shoe sizes 5 - 8 Medium fits Women's shoe sizes 9 - 12 / Men's shoe sizes 8 - 11 Large fits Women's shoe sizes 12+ / Men's shoe sizes 11- 14 X-Large fits Men's shoe sizes 14+ Sizing for insulated Pac boots is as follows: Small fits Women's shoe sizes 6 - 8 / Men's shoe sizes 5 - 7 Medium fits Women's sizes 8 - 10 / Men's sizes 7 - 9 Large fits Women's sizes 10 - 12 / Men's sizes 9 - 11 X-Large fits Women's sizes 12+ / Men's sizes 11 - 14