Bogs Kid's Mattie Jr Dahlia Ankle Boot (Toddler/Little Kid/Big Kid) 100% Rubber and fabric Rubber sole 100% waterproof Natural hand-lasted rubber and a four way stretch inner bootie Non-slip and non-marking outsole Removable polyurethane sockliner with an Aegis anti-microbial odor protection insole Comfort rated from temperate to sub-zero conditions