Bogs Kids Classic Flower Dots  Insulated Boots, , 9 M US Toddler 60% Neoprene/40% Rubber Rubber sole Shaft measures approximately 7.25" from arch Boot opening measures approximately 9.5" around 100 percent waterproof durable hand-lasted rubber over a four-way stretch inner bootie Max-wick moisture wicking lining Durable non marking rubber outsole Dura fresh odor resistant footbed Constructed with 7 millimeter neoprene insulation and comfort rated from temperate to -30 degrees fahrenheit or -34 degrees celsius