Mountain Warehouse Traveller 60 + 20L Rucksack - Durable Backpack Capacity  Large rucksack, 60 litres & detachable daypack, 20 litres for added convenience Adjustable Back  Adjust the shoulder straps for the most comfortable position and avoid back pain Pockets - Functional, compact, secure and safe storage Chest & Hip Straps  Helps stabilise the bag and distribute weight evenly Rain & Flight Cover  Protects the bag from rain and shoulder straps from getting stuck