Kahtoola MICROspikes Traction System Red Large. This Spike from Kahtoola is an award winning traction system that has been designed to work in practically any environment. The Kahtoola MICROspikes Traction Device features strategically placed stainless steel spikes connected to a dynamic flex-chain with a tough elastomer shoe harness. The unique "microspike" chain of the Kahtoola MICROspikes Extreme Traction Device adjusts itself to grip nearly any surface from ice and packed snow to wet rocks concrete and scree. This pocket-sized Kahtoola Traction Device is the answer for people of all ages who want to stay active in the winter with convenient effective foot traction. Specifications for Kahtoola MICROspikes Traction System: Manufacturer: Kahtoola Activity: Alpine Climbing Condition: New Fabric/Material: Heat-Treated 400 Series Stainless Steel Weight: 9.8 oz Age Group: Adults Gender: Unisex Features of Kahtoola MICROspikes Traction System Twelve 3/8in hardened stainless steel spikes Welded stainless steel chains for traction and packability Durable harness with patented reinforced stress points Integrated toe bail for added security Raised heel tab for easy on/off Package Contents: Kahtoola MICROspikes Traction System Tote Sack Kahtoola KT02004: MICROspikes Traction System Red Large