Contoured cushioning, a flexible sole and lightweight feel provide lasting comfort in this durable combat boot. 1 3/4" heel 4 3/4" shaft Lace-up style BLOOM removable foam-cushioned insole with arch support Rise by BLOOM is an algae-blended resin containing algae biomass and bio-based additives, with renewable content of at least 45%, offsetting a significant portion of traditional EVA in footwear foams Treated with antimicrobial technology to keep you feeling fresh and dry Synthetic or textile and synthetic upper/textile lining/synthetic sole Imported With the purchase of this shoe, Dr. Scholl's will donate one tree to the nonprofit Trees for the Future, which provides opportunities for impoverished families to learn sustainable farming techniques