Vasque Men's Blur SL GTX Waterproof Trail Running Shoe 100% Synthetic nubuck, microfiber, and thermoplasic polyurethane Rubber sole Blur SL GTX will keep your feet dry and protected Light but supportive upper, cushioned yet stable midsole are built to go the distance Gore-Tex extended comfort membrane is exceptional breathability without sacrificing waterproof protection Outsole is slotted to allow for more natural deformation upon heel strike and features minimum rubber to decrease weight for fast-paced runners Good traction on hard and loose packed trails