Arc'teryx Mens Norvan LD 4 GTX ShoesRune Brown Hiking Sneakers Dual density midsole material and construction combine cushioning with lasting shock absorption and support for all day comfort and stability on rugged terrain Lacing system provides a smooth pull and secure midfoot fit while preventing backslip Tongue pocket secures the laces, eliminates lace bounce, and prevents snagging Flexible external frame wraps the midfoot for a secure hold that prevents forward slide and toe bang