ShuBee "Armor-Dillo" Boot Covers XL (50 pairs/box) 819329 Save money! These durable boot covers last much longer than standard boot covers Won't rip or shred when used on concrete, gravel or other abrasive surfaces Waterproof, skid resistant - Tougher than any other shoe or boot cover on the market today Fits up to size 18 work boots Elastic gathers hold boot cover on securely and allow service tech to slip on and off easily and quickly.