Autosock AL79 Snow Sock Set 10R22.5 275/80R22.5 295/75R22.5 305/70R22.5 315/70R22.5 Each package contains 2 Autosocks Peterbilt Freightliner Kenworth Volvo Mack Autosock is an alternative traction device as compared with tire chains No More Chains! AutoSock is the ideal solution for loss of traction to increased safety, control and comfort on snow and ice. AutoSock is a patented tire snow sock system made of hi-performance textile material designed for emergency situations. Uséd when needed, the AutoSock markedly increases grip and traction from tire to road in adverse weather conditions. Extensive testing proved theories about textile friction abilities and lead to the AutoSock. Leading car manufacturers and scientific institutes in Europe, Asia, and the US have supplied solid support for AutoSock snow socks for tires. AutoSock can fit a variety of vehicles: Cars Light Trucks Buses Vans Commercial Trucks AutoSock AS is a Norwegian research-based company that holds all the rights after development to AutoSock.