Beachy waves have easygoing, eternal allure. Whether you wear them with a formal gown or a great pair of jeans, they always look right. This hairstyle is also surprisingly simple to create on your own, which is why it’s among Rosie’s favorite off-duty looks. Here, she shares her own step-by-step styling process, from the hydrating shampoo she relies on to the styling tools that create lush waves without fail. Watch to discover how the look comes together, then shop the story below.