The Traveller range of Deuter packs are comfortable-to-carry suitcase/backpacks with plenty of space, even for longer trips. The packs have a large, zipped EXP volume expansion bellow to give you extra space on the way home, which is great if you got a little carried away with your shopping.
TheSL carry system is slightly shorter than that of Deuter's standard packs, both in the back size and in the shoulder straps. The shoulder straps are also narrower to fit better to the narrower shoulders of women. The SL models are the ideal choice, too, for male users with shorter backs.
The detachable day pack adds another 15L of space to the 55+10L suitcase pack, meaning you have up to a total of 80L of storage space.