Yaktrax Summit

CampSaver.com says:
Yaktrax Summit Lg 0. The triangular carbon steel spikes bite into packed snow and ice providing superior grip on sloped surfaces. The Summit offers customized fit that is both comfortable and secure featuring the patented Boa Closure system. Specifications for Yaktrax Summit Traction Systme: Manufacturer: Yaktrax Gender: Male Age Group: Adults Men's Shoe Width: Medium Color: Blue Footwear Type: Shoe Care Weight: 17 oz Activity: Winter/Snow Footwear Accessory Type: Snow Traction Features of Yaktrax Summit Traction Systme: Boa Closure System provides Fast Comfortable & Secure Fit Aggressive traction on packed snow and glacial ice Triangular spike design grips on sloped surfaces Segmented Sole Plates flex with foot and prevent snow build up Easy on Easy off Rugged Heavy Duty Design Fits Most types of Footwear Durable natural rubber outer band Twelve 3/8 inch high abrasion resistant carbon steel spikes Welded stainless steel chain links Package Contents: Yaktrax Summit Traction Systme Yaktrax Summit Traction System-Blue-L