Outscape Chelsea Boots from Muck Boots. Features bioDEWIX™ antimicrobial footbed insert with NZYM™ for odour control and moisture management, full neoprene bootie with exposed sides for added comfort and easy on/off, 3D airmesh linings for breathability, molded PU insert with memory foam for superior underfoot comfort, 100% waterproof outer, rubber heel and toe for durability, nylon shank.