Code 6.2 is our most breathable boot offering dependable durability and lightweight performance. This 8" style offers a side zip for easy on and off as well as a cushioned insert for comfort. Lightweight Leather and Nylon Upper with TPU Enhanced Print Breathable Vapor Mesh Tongue Padded Collar and Ergonomic Flex Points V-Fit Comfort Lacing System YKK Nylon Side Zipper Dual Density Removable Cushioned Insert Lightweight Phylon Midsole Slip Resistant Rubber Outsole and External Shank Cement Construction