The Frosty XT has all the bells and whistles of our best-selling Frosty, plus a removable warm liner and waterproof construction.Insulated nylon upper features adventurous prints and fully insulated lining.The Frosty XT offers a waterproof construction and adjustable toggle collar to keep debris out.Removable felt liner with foil wrap and EVA insole with Berber top layer offer extra cushioning for little feet; premier 200 gram Thinsulate insulation keeps little feet warm.Hook and loop strap allows for secure adjustments; reflective heel pull strap is great safety feature that makes it easier to get the boot on and off.Waterproof lightweight TRP shell ensures traction and shock absorption with good abrasion resistance in snowy or icy conditions.