Columbia Women's Snowpow Tall Omni-Heat Snow Boot 100% Textile/Rubber Imported Rubber sole Shaft measures approximately 13.25" from arch Boot opening measures approximately 14" around Omni-Grip non-marking traction rubber. Removable contoured PU footbed. A combination of waterproof Neoprene and Rubber. Rated -40F/-40C. Omni-Heat reflective lining.