The XTRATUF® Ankle Deck Boots are 100% waterproof and crafted specifically for Off-Shore anglers. XPRESSCOOL™ liner for a drier, more breathable foot environment. Recommend half sizes order up 100% Waterproof Slip-Resistant Chevron Outsole XPRESSCOOL Liner Front and Rear Pull-On Tabs Shaft Circumference is 12.6 inches Toe Box Height 1.19 inches Approximately 3.16lbs Measurements were taken from a men's size 9. Expect slight variations based on size Men's XTRATUF 6" Ankle Deck Boot - Gray / Yellow