Mountain Warehouse Nevis Extreme Rucksack - 55 + 15L Backpack Capacity - 55 + 15 litre travel essential, for camping, backpacking & outdoors Adjustable Back  Adjust the height of the straps depending on the length of your back Rain & Flight Cover  Protects the bag from rain and shoulder straps from getting stuck Multiple Pockets - Functional, compact, secure and safe storage Compression Straps  Adjustable, fastens and tightens the bag around the chest to provide load transfer