Powder Pirate wrote a review of ARVA X-Powder 15L Zip-On on August 6, 2014
Familiarity: I've put it through the wringer
I am 5'7" and have the ABS powder base with an Arva 15L zip-on and think it is one of the best setups available. It is comfortable, light, and holds what I need it to hold without carrying extra weight or size. Unless you have to carry ropes or large amounts of gear this is a perfect size for day tours, this is also a great size and setup for women.