Mountain Hardware Men's Gaiters Size Chart
  Small Medium Large X-Large
US Shoe Size 5-7 6-9 8-11 10-14
UK 4½-6 5½-8½ 7½-10½ 9½-13½
Euro 37½-39 38½-43 41-45 44-48½

These are general guidelines only, sizes are not guaranteed. But no worries, since at SunnySports we offer our exclusive PFF Guaranty