Let Mother Nature do her worst! You're riding outside anyway because you have Mavic's blizzard-ready Frost shoes at your disposal. Their fully waterproof Gore-Tex uppers scoff at wind, snow, rain and cold weather so you can avoid the trainer and experience the calm and tranquility of deserted winter roads. For efficient power transfer you get Mavic's Energy Composite outsoles, while their antibacterial Ergo Fit 2D insoles give you mile after mile of pedaling comfort. And, the triple-strap system lets you fine-tune the fit so you can enjoy the perfect winter ride.