Crocs has taken the Caymen casual clog and made a few adjustments such as closing the holes on the sides, removing the heel strap and then adding a super soft removable lining to create the Mammoth. Crocs Mammoth clog has taken Crocs from summer wear to winter wear. The lining in the Mammoth is easily removed for machine washing and the Mammoth is still a vegan clog. Mammoth is available in black, brown, khaki, army green or pink. SIZES SHOWN ARE WOMENS US SIZES.