Acne's got the perfect breezy shirt to see you through sweaty days and balmy nights. $169 isn't so bad when you consider how much wear you'll get out of this one all season.
Acne Pink Base Check Shirt, available @ Oak.
. . . and the Purple Base Check Shirt, also $169.
Or, if black and white is more your thing, try the Black/White Base Stitched Check Shirt.