One of summer's hottest trends is bold, bright eyeliner -- and for good reason! A dash of color along top or bottom lashlines instantly upgrades any makeup look! Right now, we're obsessed with Sephora's new Jumbo Liners. These featherweight pencils come in a zillion eye-popping shades, and can be used to rim your peepers or shade your lids as eyeshadow. And there's no reason to skip bold color on humid days (smear much?), because the pencils are heat, water and humidity-proof -- and the color stays put up to twelve hours. Sent from heaven! Sephora Collection Waterproof 12HR Jumbo Liner, $10, available at Sephora stores and sephora.com.