Rubber sole Slip-on construction wraps your foot like a sock without compressing or exerting pressure points. Updated heel design for increased comfort and fit. Outsole lugs wrap the midsole to provide added traction and enhanced stability on off-camber terrain. FriXion XT V-Groove2 incorporates dual-compound rubber guaranteeing superb grip on any type of terrain, dry or wet. Updated Tongue is ergonomic, padded, highly-breathable and will stay in place with gusseted construction.