Designed for running, this lightweight traction footwear features 10 ultra-durable tungsten carbide spikes per foot that deliver impressive grip without sacrificing comfort. They're also perfect for walking on sidewalks and firm urban trails. Wash with lukewarm water and air dry. Do not dry with heat. Low-profile rivet connections offer a secure, durable connection between the harness and bottom plate while reducing pressure points. Integrated toe bail secures the shoe during descents and reduces pressure points on your toes. Center plate ridges enhance grip and stability while directional lugs improve traction in packed snow. Enhanced Thermoplastic Elastomer Harness Geometry provides a more precise, comfortable fit on a variety of running shoes and helps makes getting them on and off easy. Improved heel tab allows easy on/off. Concave tungsten carbide spikes provide instant engagement on ice and resist abrasion up to 100 times more than steel on bare pavement. Imported. Kahtoola NANOspikes V2 Footwear Traction Olympic Coast/Charcoal Large, Plastic