Jak Trading Co.'s biggest backpack ever boasts a whopping 45L of carrying capacity, with a roll-top closure and seams electronically heat welded to ensure complete waterproofing. Lightweight build and foam shoulder straps mean that it's comfortable, too, making it the perfect pack for everyone from the casual day hiker, to the intrepid cross-country trail walker.

• A 100% waterproof, hydration bladder-compatible backpack that easily holds as much as you can carry
• Comfortable and cool thanks to 3-way adjustable padded shoulder straps and an ‘airflow’ system designed into the padded back panel
• Durable UV Coated 24oz Tarpaulin PVC is electronically heat-welded seams for maximum waterproofing
• Integrated hydration bladder pouch (bladder sold separately), reflective webbing, external bungee storage system, inner sleeve pocket, and two side mesh pockets that fit 32 oz water bottles