Tourmaster Mens Sentinel Black Rainsuit Pants - 4X-Large Waterproof and breathable Rip Stop Nylon shell with sealed seams is rated MVM 5000 for maximum breathability. Polyester mesh lining enhances air circulation and comfort. Waterproof/breathable stretch material panels above knees and in the inseam provide flexibility and comfort. High-density nylon seat panel provides added strength and minimizes slipping. Ergonomic, 4-panel knee design provides increased comfort in the riding position.