Made with high-quality recycled 420D nylon, the Core Pack 15L is durable to withstand the elements and abuse of mountain biking and traveling no matter the weather, rain or shine. The Core Pack 15 adds a water-resistant and abrasion proof exterior fabric that keeps belongings safe and dry in case of rain or unexpected mud. Every RMU pack is designed with durability in mind so that you are prepared for your adventures. Loaded with features this 3L hydration ready pack can cover every need out on the trail. Store all of your tools and every accessory for the trail, even a spot for a tall boy.