The colossus ii is a versatile and practical pack designed for exploring. Zip through airports with the handle and wheel system, explore cities and trails with the detachable day sack or just throw it over your shoulder and hit the road with the shoulder straps and padded back system. The versatile storage offers 65 litres of space, including 20 litres that can be detached for day hiking.  padded mesh backsystem and lumbar support detachable 20 litre daysack with concealed zip pocket and side mesh pockets chest strap helps to distribute weight evenly across back and front top and side grab handles padded hip belt added comfort lockable zips with zipped stowaway cover adjustable waist strap with padded hip belt breathable, adjustable padded mesh backsystem capacity 65l detachable 20l daysack