It's a balancing act between your face shape and your sunglasses' frames, so a rounded face looks best when paired with an angular frame.

这种反差可以平衡你的脸型，所以圆脸配上有棱角的镜框最好看。

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And Gap's high-end line, Banana Republic, has signed a five-year deal with Safilo Group, an Italian luxury-eyewear firm, to sell Banana Republic-branded frames and sunglasses in Safilo's Solstice stores, other retailers and possibly in department stores, too.

ECONOMIST: Retailing