PU insert/Transkinetic heel stabilizer and Flex Transfer shank for uneven terrain. Nonmarking, FriXion AT sticky rubber sole for excellent traction and grip. MEMlex midsole and soft 2.4 mm EVA lasting board for shock absorption. * Breathable AirMesh upper with protective wear-resistant mesh Trail Cage. Impact Brake System Outsole:Reduces up to 20% of impact forces on feet, legs, and back on hard groundSlanted lugs deform on impact and offer superior grip on very steep terrain. Flexible UreTech reinforcements on upper provides abrasion resistance. * Foot-wrap lacing harness provides a secure, stable fit for every foot type. Honeycomb mesh lining at tongue and heel for breathability. Comfortable performance fit: medium-wide.