Exped Lightning 40 Backpack Black L/XL. It offers outstanding comfort freedom of movement and load-bearing stability. The functional roll-top maximizes weatherproofing and allows expansion of the main compartment to accommodate extra gear when needed. Side pockets made of elastic fabric can be used to store items such as water bottles as well as trekking poles or tent poles. Zippered pockets on the hip belt on top of the pack provide even more quick-access storage space. Side zig-zag compression straps and a webbing strap that runs across the backpack with quick-release buckles keep gear like a mat or tent fly securely in place. Those who use the Lightning for mountaineering can attach ice tools to the designated loops and central daisy chain. The suspension system is fully length-adjustable and can be easily configured to fit the length of your back. The extremely lightweight material is water-repellent and PFC-free. Specifications for Exped Lightning 40 Backpack: Manufacturer: Exped Gender: Unisex Pack Volume: 40 liters Package Contents: Exped Lightning 40 Backpack Exped 7640277849655: Lightning 40 Backpack Black L/XL