Mtn Traction Sole: Take on any terrain with confidence in these hiking shoes, inspired by the topography of the Rocky Mountains. The rubber Crocs Mtn outsole boasts a topographic tread pattern, providing maximum traction for your outdoor adventures. Adjustable Clip-On Heel Strap: adjustable pivoting nylon webbed heel straps that clip directly into your clogs. Quick-to-dry design: The unique quick-to-dry design of the Atlas clog means that you can easily transition from wet to dry environments without any worry.