Merrell Coldpack 3 Thermo Tall Zip waterproof Earth J037201 M 10 10.5 more aggressive lugs at the more aggressive lugs at the perimeter designed for improved traction on uneven terrain Footbed Lining Polyurethane Comfort Features:• Heavy duty YKK zipper for easy on and off• Protective and abrasion resistant rubber toe cap• Cleansport NXT™ treated for natural odor control• Merrell Air Cushion in the heel absorbs shock and adds stability• Molded nylon arch shank• Super Rebound Compound midsole provides durable shock absorption to help reduce torque and allow for a smooth transition into the midfootMaterials:• Waterproof full grain leather and mesh upper• 100% recycled webbing• 100% recycled fleece lining• 100% recycled mesh footbed cover• 5% recycled PU removable footbed