If there's one thing summer is about, it's looking effortlessly cool. Hairstyles that require perfection, upkeep, and maintenance just don't jive with the spirit of the season—save those for the holidays. When it's hot and humid out, and each day is charged with the possibility that anything can happen (oh, summer nights), you want a hairstyle that works with your natural wave and texture; something that embraces twists, turns, braids and waves; something that works with flyaways and frizz, and can look even better the messier your hair and the longer the day gets. For that aim, we rounded up 15 cool looks to pin, try, and tailor to your heart (and hair's) content this summer. Keep scrolling to see the styles you have to try at least once this season!