Features lightweight and rugged fully waterproof 20 litre backpack from overboard innovative fold seal system uses a roll top and buckle closure to keep the packs contents dry and secure ventilated back panel and padded straps with air flow design ensure carry comfort adjustable sternum and waist straps for a tailored fit reflective strips and patches durable high frequency welded construction buoyant lightweight straps with ventilation bungee webbing 3 x d rings provide attachment points 1 x