From mirrors to holograms, it seems like bag designers just can’t get enough shine. And neither can I. Since the holographic sheen reflects all colors of the rainbow, less is definitely more in terms of size. With Marc by Marc Jacobs’ pouch (on Shopbop for $68), you’d never lose your keys again. Throw it in your bag to add a little twinkle to your style or carry it with your credit card and some cash when you want to downsize. For nights on the town, I’d recommend Stella McCartney’s faux leather pouch (on NET-A-PORTER for $310). The silver chain strap lets you move about your business without fear of forgetting it on a table or chair. Still not enough iridescence for you? Take the shine quotient up one more notch with Zilla’s cross body bag (on Farfetch for $360). The crinkled material relaxes the futuristic vibe, making the holographic style something you can rock and shock with everyday.