The Barrage Cargo is our best selling, most rugged all-condition backpack. Featuring a watertight, fully welded main compartment and an adjustable exterior cargo net, the Barrage is built to adapt to any environment or payload. A favorite of bike messengers the world over, rolltop bags give you extra room when you need to haul a ton of gear and fold over to keep everything inside protected from the outside world. Ideal for travelers, commuters who need to carry a variety of cargo or cyclists who get gnarly in all weather, rolltops get the job done. Part of our Heritage Collection, guaranteed for life. BG-163-SMK-NA SIZE 20" H | 11. 75 "W | 6" D VOLUME 18L - 22L WEIGHT 3 lbs | 1. 36 kg BAG MATERIAL Outer shell: 1050D Nylon, 22 oz 1000D TPE Tarp | Inside: 22 oz 1000D TPE Tarp LAPTOP SIZE up to 15" LAPTOP COMPARTMENT Top Opening | Not Padded | 14 1/2" H | 10 1/2" L | Headspace: 7" unrolled, 3" rolled 2-down.