R&G's stylish Roll-top Rucksack is fully waterproof, extremely durable and very comfortable. 
This backpack has a roll down top that is secured by two separate velcro straps and, a fully adjustable quick release buckle.
There's lots of room inside and it also features 2 external pockets (1 at the back, 1 at the front) both with a generous amount of space and secured by high quality zips. 
This Rucksack is very comfortable and helps to eliminate strain on your back, shoulders and neck thanks to the padded back and straps. The adjustable quick release buckle that wraps around your chest also helps eliminate strain while also securing the bag, keeping it from moving too much.