I have a few linen shirts and none of them wrinkle THAT badly. I have one from Donna Karan (@ Loehmanns) in a lightweight but opaque spring green, a black one in a heavier weight from Express (on clearance at Marshalls for $10), and a white medium weight Irish linen one from BR by way of a thrift store that I haven't gotten to wear yet. The black one is one of my go-to shirts in summer - I can steam it out and iron if necessary. I just throw them in the wash, and iron them out (inside out for the most part, to help avoid fading/shininess). Granted, these are not dress shirts, and none of them have collar stays or heavy interlining, but for a more casual setting in warm weather they are great. BTW, I usually wear undershirts with these - I don't like sheer fabrics, and I usually wear a Coolmax undershirt with these for maximum ventilation. I often actually get cold in hot weather if there is a breeze.