Cardigans are always on my brain, but when Summer rolls around, I gravitate toward ones that are less chunky, more lightweight. These Pins & Needles Open Cardigans ($15, originally $32) are perfect, not only in price, but also in style. The stripes make them incredibly chic, while the lack of buttons creates a laid-back vibe. Throw one on over a bikini, a tank, or a printed sundress for the ultimate mixmaster outfit.