Sea to summit Big River 50L backpack

Conquer any adventure with the SEA TO SUMMIT Big River 50L Dry Backpack. This ultradurable, non-PVC pack is built for water sports and hiking, keeping your gear bone-dry with a Hypalon roll-top closure. Its abrasion-resistant 420D Ripstop Nylon and oval shape ensure rugged performance and stability. Enjoy a comfortable, secure carry thanks to the robust harness and adjustable sternum strap. Features low-profile grab handles and field-replaceable buckles for ultimate convenience and peace of mind