Merrell Snowbound WTPF Waterproof Boot (Toddler/Little Kid/Big Kid) 100% Syntheic/Textile Imported Synthetic sole Shaft measures approximately 7" from arch Boot opening measures approximately 10" around Eva removable footbed M-select fresh naturally prevents oder before it starts. M-select grip tunes eash outsole with durabble tration that grips when and where it is needed. M-select dry, impermeable membrane, seals out water and lets moisture escape so you stay dry when you are on the move. M-select warm lightweight,low bulk insulation keeps you warm