The Michelin SOS Grip snow socks X4 offer improved vehicle traction on snowy and wet winter roads through advanced absorption technology. These snow socks utilize ultra-absorbent fibers that effectively capture the thin layer of water between the tires and the road, creating additional dry friction for better grip on slippery surfaces. The innovative 3D micro-weaving technology forms a micro-profile around the tire, significantly enhancing grip on snow-covered roads and providing necessary control in challenging winter driving situations. This successor model to the previous snow socks combines comfort, safety, and reliability for winter driving needs. The SOS Grip X4 is EN16662-1 certified, making it suitable for most European winter driving destinations, although users should check local regulations as they are not approved in Austria. The product includes two snow socks, mounting gloves, a user manual, and a sturdy carrying bag. Compatible with various tire sizes including 185/80R14, 205/70R14, 175/80R15, 195/70R15, 205/65R15, 225/60R15, 205/60R16, 215/55R16, 225/55R16, 215/50R17, 245/45R17, 215/45R18, 245/40R18, and 245/35R19. Important note: If your vehicle manufacturer recommends conventional snow chains, snow socks may not be a suitable alternative. Designed for light vehicles where improved winter traction is needed without the complexity of traditional snow chains.