PRODUCT DESCRIPTION -- 100g insulation., Removable molded EVA with microfleece topcover.., Lightweight molded Livelyfoam. Midsole made with 10% Bloom, an algae-biomass-containing material., Molded Evertreadâ„¢ rubber., Waterproof suede upper and toe cap. Felt vamp and tongue. Waterproof construction. Heel pull loop for ease of entry. Microfleece lining. Lace are not waterproof.