Rocky XRB Boot - Men's Realtree Edge 9US. The waterproof vulcanized rubber construction keeps you dry and holds up to difficult terrain while the Dri-Blaze thermal insulation keeps you warm. A Vibram outsole provides underfoot stability while on wet or rocky terrain. These 16? boots have a removable PU footbed that is easy to clean. The Comfort Cushion and memory foam add stability and comfort on long days. Specifications for Rocky XRB Boot - Men's: Manufacturer: Rocky Color: Realtree Edge Features of Rocky XRB Boot - Men's: 7mm neoprene & 3D TPU molded shaft w/ rubber midfoot Waterproof vulcanized rubber Vibram outsole Removable PU footbed with memory foam Dri-Blaze thermal insulation (800-100 gram equivalent) Package Contents: Rocky XRB Boot - Men's Rocky RKS0540-M-9: XRB Boot - Men's Realtree Edge 9US