The Outmax is the next evolution in high-performance, all-terrain footwear. The comfort-first BioLite foam midsole offers lightweight cushioning while the rugged outsole featuring 4mm lugs and deep flex grooves delivers stability, traction, and protection across any terrain. Constructed with 3mm of our signature Muck Boot neoprene and treated with a durable water repellent (DWR) finish, ita (TM)s ready for whatever the elements throw your way. A TPU shank and MaxFit Core footbed provide all-day support and comfort. The Outmax was built to outlast and outperform. Design: 100% waterproof, 100% MUCKPROOF 3mm neoprene bootie with DWR treatment In-Shoe Comfort: Breathable mesh lining BioLite foam midsole for exceptional underfoot comfort Maxfit Core BioLite footbed Durability & Traction: Rugged rubber outsole with 4mm lugs and deep flex grooves for traction and debris expulsion Additional Details: TPU shank for stability and heel bevel to reduce fatigue bioDEWIXa" Dry with NZYMa" uses natural, plant-based enzymes that break down odor-causing material in sweat and keeps your feet fresh