Skechers Go Run Trail Altitude Marble Rock 3.0 Trail Running Shoes Tear up the trails in lightweight comfort with the Skechers Go Run Trail Altitude Marble Rock running shoes. This lace-up trail runner features an air mesh and leather overlay upper with a Skechers Air-Cooled Goga Mat high-rebound insole and a rugged traction system ready for any terrain. Trail Air Mesh Upper Made using a trail air mesh with leather overlays through the uppers, the Go Run Trail Altitude Marble Rock 3.0s provide you with a lightweight, comfortable and breathable sensation. The materials allow cool air to permeate through the uppers, increasing ventilation and helping to reduce an uncomfortable heat build-up, creating the perfect environment for your feet to thrive in. Synthetic overlays also feature on the upper to provide added durability and support, helping to resist wear and tear and giving you peace of mind on tough terrain plus, they also support the toe and heel to ensure a locked-