Besides being the coolest shirt i've ever had, it's also one of the softest! It's super thin, too, which i love cuz i sweat a lot! It runs very true to size. I wasn't sure what size to get. I'm big up top so i got the XL, and it fits great! Got my hubby the same size XL, and his looks awesome, too! But you can't tell by looking at the pics what the material feels like, but it's super soft, quality material. LOVE this shirt!