100% Waterproof gold certified leather upperBLOOM eco-friendly, algae-based EVA footbed that helps clean polluted water habitats.BOGS Max-Wick evaporates sweat to keep feet dry100% Recycled PET liningWith algae-based footbeds, Holly is tough, rugged, and easy on the eyes. They’re perfect for a mountainside hike, a night out, or a worksite strut. Versatility never looked so good.