Alittle bit constricting(I have a hard time bending over with it on)
i have the black one and it is really nice it holds a lot of paint so i almost never have 2 worry about running out. sure it may constrict u but not enough that you cant move around and slide.it is compact so it is not bulging out. plus it can hold a CO2 tank. One thing i dont like is that it can get kinda heavy even with out the CO2and it can also get really hot with it on, (i was playing and it was hot and when i took it of i had a ring of sweat on my shirt were the pack was). I only recommend it if you shoot alot of paint, if not then i would stick with something smaller.
It is one of the best packs that i have scene on the market today, plus it is only like 25 dollars. If you shoot alot of paint then get it, u wont be disappointed