Trail running trousers are made with a lightweight, resilient and abrasion-resistant fabric. These features are ideal for ensuring total freedom of movement while withstanding the obstacles of the terrain. It has inner LYCRA shorts that fits snugly to the body. This prevents chafing. It is rounded off with a LYCRA piece with hypoallergenic silicone to keep it securely fastened and not to cause the athlete discomfort. They also have a zippered pocket in the lower back.