DetailsAll natural hand-crafted rubber, with uncompromising sent free and waterproof protection. Adjustable back gusset and strap with adjustable fit for various leg sizes, with extra rubber abrasion protection in toe, heel and shin. 1200G ThinsulateÂ™ Ultra Insulation for those needing protection in extreme cold environments. Quad-Core technology featuring four layers of cushioning support. 4xBurly outsole for superior traction in snow, mud and loose terrain. 18" tall and 6.5 lbs.