Some ground is so nasty, so gnarly, you'd think it had a personal grudge against your pants. Where trousers fear to tread, you've got the Master Gaiters. They laugh at the deepest brush, scoff at the roughest rocks, and wrap your legs in a layer of protection tougher than year-old jerky. So fear no terrain: Master Gaiters will get you where you're going with your pants (and your dignity) intact. <br> <br> Medium: 16 IN Tall x 17-13 IN Calf Circumference <br> Large: 17.5 IN Tall x 18-14 IN Calf Circumference