Columbia Little Kid/Big Kid LKBY1110 Bugabootoo Boot,Rocket/Squash,13 M Little Kid 100% Oiled waterproof leather Rubber sole Slimtech insulation, temperature rated to -25 degrees Fahrenheit Seam sealed, waterproof construction One-piece injection molded thermoplastic rubber outsole keeps feet warm and dry Rustproof D-rings and nylon speed hook quick lace construction