Dressing to combat the summer heat is already a big task - but then add in hiding arm jiggle? No, thanks! When the temps hit 90, none of Us want to have to worry about body insecurities. We just want to feel confident, cool and effortlessly put-together - and that's where the right dress comes in. Below, we rounded up 17 of the best summer dresses that offer flowy, flattering arm coverage. Think: breezy fabrics, flattering silhouettes and cleverly-cut sleeves that put your style on display - and your arms away.