I have a Stack Volley Tee and one of their zip tees and I like the way the Volley Tee fits me better. I'm tall and skinny at 6'2" and this shirt doesn't hang too loose around the waist like many shirts do on me and I like that, but it's still not too tight or anything, it's a good fit. I normally wear a size L on shirts so I got the L here and it was the right choice. I wear a size M on the Zip tees. Outside of the fit the material is light and breathable. It doesn't stick to you when you get sweaty and it has washed well so far.
