1. Backpack Capacity: 20-35L,it's not big backpack; backpack is made of high density fabric--durable and water-resistant.
2. Occasion：Great as a hiking, hunting, survival, school, or camping backpack.
3. Rucksack both WATER-RESISTANT and SCRATCH-PROOF，Equipped with very high quality zippers with nylon pulls that are rust resistant and tough.
4. Comfort: Assault pack has double stitched with mesh backing for comfort, ventilation, and strength