Gregory Alpinisto 50L Backpack Summit Black Medium/Large. Specifications for Gregory Alpinisto 50L Backpack: Manufacturer: Gregory Size: Medium - Large Gender: Unisex Weight: 3.4 lb Pack Application: Outdoor Pack Volume: 50 liters Color: Summit Black Hydration Compatible: Yes Fabric/Material: 100percent Nylon Maximum Loading Weight: 50 lb Features of Gregory Alpinisto 50L Backpack A turnkey alpine system designed to optimize your outdoor pursuits with quick transitions and easy access to ropes crampons ice tools and included helmet holder. The lightweight AirCushion back panel offers all-weather durability without sacrificing quick-drying breathable support and comfort. Designed to endure all environments with lightweight durable materials aluminum hardware and redundant systems for smooth transition from approach to climb. Package Contents: Gregory Alpinisto 50L Backpack Gregory 157877-A800: Alpinisto 50L Backpack Summit Black Medium/Large