Introducing our Hard Shell Sports Outdoor Waterproof Backpack, the perfect companion for all your outdoor adventures. The hard shell is assembled with hard aluminum rivets, ensuring a sturdy and durable construction that can withstand the elements. Made with high-quality polymer plastic, this backpack is not only lightweight but also waterproof, keeping your belongings safe and dry in any weather condition. With a spacious capacity of 15 liters, you'll have plenty of room for all your essentials while on the go. Plus, the ergonomic design and adjustable straps make it comfortable to carry, even on the toughest of trails. Don't let your gear hold you back - upgrade to our Hard Shell Sports Outdoor Waterproof Backpack today!