"Summer is all about being effortless and comfortable. For me, that means choosing outfits that transition easily from the beach to a dinner out on the town," says Tierney, who likes the Free People caftan for its breezy, lightweight fabric. "Wear a flowy one over a bikini at the beach; belt it and throw on a pair of summer heels at night. Avoid synthetic fabrics that cling, and choose soft cotton or silk, instead."
Silk, $298; freepeople.com.Read MoreLess