The humble flip-flop sandal, a summer classic beloved all around the world, is having a moment as the shoe of the summer, and Kylie Jenner is on board. Yes, we know — flip-flops for summer? Groundbreaking! However, the shoe has made a comeback after years of all-Birkenstock everything, giving us a reason to put our slides in storage and flip-flop around instead.

Kylie Jenner and her sister Kendall Jenner embarked on a sunny vacation to Mallorca, Spain, where they soaked up the sunshine on a boat, did some paddleboarding, ate lots of delicious food, saw the sights, and, of course, got all dressed up.

For a day out, Jenner paired her bright red dress with a pair of simple, classic black flip flops — nothing fancy, just an easy, goes-with-everything black sandal that is beyond easy to slip on for brunch or the beach.