The Outdoor Products Hydration Backpack is a medium-sized backpack designed specifically for outdoor activities like camping and hiking. Made of durable nylon material, this backpack features a zip closure for easy access and a single divider for organizing your items. With a gray color and a sleek design, this backpack is perfect for backpacking adventures, providing a convenient way to carry water and other essentials while on the go. It does not include a water pack, allowing you to customize your hydration system to suit your needs. Perfect for those looking for a reliable and versatile backpack for their outdoor pursuits.