Mystery Ranch Unisex Skyline 23 Backpack - Black - One SizeMystery Ranch Unisex Skyline 23 Backpack Black One Size The new Skyline 23 has a great newly designed rip zip opening and six more liters of available space than it's 17 L little brother. Its perfect for climbers with a bit more to carry or for climbers of a taller stature. The opening is great for quick and easy access with out having to fear the loss of any equipment. Material: 1000D CORDURA fabric Zip: YKK zippers Capacity: 23 L Closure type: Zip