We love it! Just read directions before using so you don't hurt your back! We even got one for our daughter.
So I think it's safe to say that this thing does what it's advertised to do. The first time I used this I did about 32 center reps about halfway rollout and I woke up sore 2-3 mornings after first using it.
Might not be so good for a non hiking application. A water bladder tube access hole would be nice too. Great pack for a light overnight hike. Plenty of room for the necessary stuff and some external mounting points for a sleeping roll and "tie-ons".
large size, good for school, i was worried about the sender but it arrived pretty quickly. great for the price.
They are the only shoes I purchase. Aikikis are the best shoes. Mine have taken me to places government issue have gone.