This thing is crazy light, so breathable on hot days and dries instantly if it gets wet. Not sure about long term durability but scraping it along rock faces all day it still looks brand new. Fit is great with the gusseted side panels and stretch to the fabric though the neck is a bit tight and the shoulder seams are a bit narrow but not noticeable while active at all. If they can make the next iteration with raglan sleeves this will be the best shirt ever.
M / Colorado Tuxedo Blue