If you've ever tried to wear a regular claw clip under a hat, you know it pokes into the back and the whole thing sits weird. These have an open design so the strap of your cap slides right through, and your hair stays up all day. They hold thick hair, they come in a 4-pack, and the tortoise shades look cute even when you're not wearing a hat. They're under $8 for all four in the US right now.