Muck Boots Excursion Pro Low Cool Versatile Outdoor Shoe - Men's Bark/Otter 13. Using the same technology as the mid version you'll stay cool and comfortable even on a warm day. Specifications for Muck Boots Excursion Pro Low Cool Versatile Outdoor Shoe - Men's: Manufacturer: Muck Boots Gender: Male Age Group: Adults Men's Shoe Width: Regular Boot Style: Hunting Boot Footwear Type: Boots Activity: Hiking Weight: 2.5 lb Fabric/Material: Rubber Footwear Upper Fabric/Material: Rubber Insole Material: EVA Water Resistance Level: Waterproof Lining Material: XpressCool Insulation: EVA Outsole Material: Rubber Pod EVA Midsole Material: Lightweight EVA Temperature Rating: Not Rated Features of Muck Boots Excursion Pro Low Cool Versatile Outdoor Shoe - Men's 4mm NEOPRENE 100percent waterproof sockliner to reduce friction and heat build up Lightweight EVA Midsole Rubber Pod EVA outsole provide optimal traction and support Package Contents: Muck Boots Excursion Pro Low Cool Versatile Outdoor Shoe - Mens Muck Boots FRLC-900-BRN-130: Excursion Pro Low Cool Versatile Outdoor Shoe - Men's Bark/Otter 13