Much unlike a scrunchie, hair clip, or even a hat, a shower cap is one of those hair accessories of which many of us overlook the benefits. Sure, most people use them to prevent their hair from getting wet in the shower - after all, that's how they're marketed - but there are actually a few other reasons why you should invest in a reusable shower cap that you'll always be able to rely on. Outside of helping you conserve water and energy by skipping the shampoo process, wearing a shower cap can help you protect and preserve the hairstyle you're currently wearing, especially if you've recently gotten a blowout or if you've had your hair professionally straightened. Covering it with a quality cap will keep out moisture that can cause frizz that may later lead you to have to re-style your hair. They're also beneficial when it comes to sealing moisture into the hair, which is why plenty of people use them while deep conditioning; they can help trap the heat being released from the top of your head and can keep your hair's cuticles open so that the hydrating ingredients can more easily penetrate. Are you sold yet? If so, do away with your single-use, plastic shower caps and shop a few of our favorite reusable (and fashion-forward) ones ahead.