I wear a medium in J Crew slims and BB extra slims. I'm going for the size 40 on the Yosemite, because in my experience "pre-shrunk" is a lie unless you are meticulous about hand washing and hang drying. My size 38 from last year definitely shrank a bit, especially in the sleeves. Anyway, just went ahead and ordered one in each color, trying not to convince myself to buy a an extra red.
10/28/14 at 8:26am