When you think of seersucker you probably picture bloated southerners in blue and white stripes, drinking Mint Juleps at a horse race under big ugly hats. But in truth there's no reason why this uniquely textured lightweight fabric can't be used in more modern colours, patterns, and styles, and some designers have figured that out. Seersucker is great stuff for summer. Not just because it keeps you cool, but unlike poplin and linen it still looks good wrinkled—because let's face it, it's sort of wrinkled already. Shown: Ermenegildo Zegna sport coat (via British GQ). L.L.Bean Signature pant (matching jacket available).