For your next epic undertaking, wear the Defend Fire Pants and you'll understand what it's like to use a model tested by our professional mountain bike athletes on the toughest trails around the world. The slim cut and slightly tapered lower leg are optimized not to get in the way of pedaling and the special buckle closure system ensures a perfect fit and comfortable and quick adjustments while you're on the move. When fatigue sets in, you can rely on the breathable insulation of Polartec Alpha fabric to keep you cool, without having to add or remove layers during effort. Plus, the efficient DWR water-repellent coating sheds moisture, mud and debris. The Defend Fire Pants, with fleece lining and ripstop stretch fabric, will keep you riding longer even when the temperatures drop.