Sorel Caribou - Get set for an afternoon of snow-filled fun in the warm and comfy Caribou boot from Sorel® Kids. Waterproof nubuck leather upper. Seam-sealed waterproof construction locks water out and keeps in the warmth. Embossed logo stamp at sides. Lace-up closure with D-ring eyelets. Removable 9mm ThermoPlus® felt InnerBoot. Sherpa Pile™ snow cuff. 2.5mm bonded felt frost plug. Handcrafted waterproof vulcanized rubber shell. Sorel AeroTrac™ non-loading outsole with nub grips. Lost your liner or need a new one? Find one here!.