The Brothers Chai

Details' latest installment of their Rules of Style series checks in with the brothers Chai—Eddy, co-owner of New York's Odin and Richard, designer of a namesake menswear label that's becoming more and more popular each season. The two take turns offering advice on everything from the fit of clothing to seasonal grooming habits. And we definitely agree with Richard's take on personal style.

The key to men's style is always being a little undone. You should never look too precious or have colors match too perfectly. And don't be afraid to mix different patterns together, like a plaid with a stripe.

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The summer 2013 swimsuit buying guide.

Up Your Sleeve

Can you recommend a better laptop case?

- Winston, VA

Aging Chinos

Make them look and feel like you've had them for years.

- Lucas, WA