Comfort collaranatomically shaped collar is flexible and breathable yet supportive for excellent comfort and fittpu heel supportextra support in heel provides excellent stabilitymoulded comfort eva socklinerprovides a moulded fit for longlasting comfort and supportfull grain leather saddleultra premium leather saddle for ultimate performance durability and qualityleather pull tabeasy on off and adjustment of comfort tongue4 way stretch waterproofperformance mesh stretchy and breathable yet supp