Hook and eye, like a regular bra. I've seen some that zip up in front. These sound great, love the no itchy tags!! The humidity here means that you never get completely dry after a shower at the campground and trying to get one on and unrolled after it sticks to you and rolls up is kind of a nightmare 😂. And I always take the stupid cup pad thingies out, they're so annoying. Thank you for your input and I may be checking these out for reguar sports bra usage 🫂