I run in this shirt all the time. It breathes well and is the perfect summer shirt for those 100+ days in the Texas summer. I highly recommend this shirt to anyone who lives in hot climates. The Deniable Packrat
I love this shirt and the graphics, it is the lighter Capilene so it breathes even better but the fricken collar is fixed so it doesn't stretch at all, what the crap were they thinking at Patagonia? I am starting to loose faith in this company! That and the colors they use and all the plaid shirts they make are so fuggley! Look at their new pro shells, lime and bright orange, seriously?!