The new La Sportiva Men's Crossover 2. 0 GTX Trail Running Shoe really takes the guesswork out of your choice of footwear in the morning. An airmesh and microfiber upper helps to maintain breathability, while still retaining the durability you need from a trail runner. A Gore Tex Extended Comfort lining ensures that your feet stay comfortable all day, without getting all wet and clammy along the way. The Frixion AT rubber sole gives excellent traction in anything from snow, to mud, and everything in between. As if all this wasn't enough, La Sportiva turned these beasts into the ultimate winter warriors by attaching a water repellent gaiter, to ensure that nothing gets at your foot without your permission.