Rocky Mountain Stalker Pro Boot - Men's Brown 11US. Measuring 10-inches high these boots are made with a waterproof leather and fiberglass shank for exterior protection. The rugged 7mm lug outsole features a lightweight EVA midsole. An EnergyBed footbed with memory foam provides a comfortable fit tailored to your specific contours. Specifications for Rocky Mountain Stalker Pro Boot - Men's: Manufacturer: Rocky Color: Brown Features of Rocky Mountain Stalker Pro Boot - Men's: 400 grams of 3M Thinsulate Ultra Insulation Fiberglass shank 10" tall EnergyBed LX footbed with memory foam Waterproof full grain leather with 1200 denier nylon Package Contents: Rocky Mountain Stalker Pro Boot - Men's Rocky RKS0529-M-11: Mountain Stalker Pro Boot - Men's Brown 11US