Yellowstone trail waterproof rucksack 30l description this trail rucksack is great for everyday use work school or trekking its made of 600d polyester and has a 30 litre weight capacity rucksack has a padded back panel padded shoulder straps and 2 main compartments with external mesh side pockets and a front zipped pocket available in black and red features internal organiser 2 main compartments with external mesh side pockets and front zipped pocket padded back panel and