Here's a simple, brilliant idea: stylish summer suiting that's machine washable. After all, sun season is also stain season, thanks to cookouts and outdoor weddings, which makes Seize sur Vingt's new lightweight suits an ideal insurance policy against grass smears and Riesling spills.

The concept would be little more than a great notion if the New York-based label, a 15-year veteran of the custom tailoring game, hadn't executed it with such aplomb. The new suits come off the rack with the essentials nailed: fitted shoulders, a slim profile, and the ease and lightness of an unconstructed body. Yes, the suit can take a tumble without losing its structure.

Then there are the colors: The 100 percent cotton oxford suits come in a seasonally appropriate light blue, a bold but wearable pink, and a more traditional navy that reads as off-gray. Because these Portugal-made separates are so light, they feel no more oppressive than your go-to button-down and look a lot crisper, making them ideal for when a rehearsal dinner devolves into an impromptu Wiffle Ball tournament. [$960, 16sur20.com]