Radiant Beach Beauty from "Smart box: Beachwear"
Glorious Beach Beauty from "Smart box: Deluxe Beachwear"
They came out in 2014 and have been in the cash shop in various forms since then. They've been given as event rewards as well. I don't know if you can still buy it from the TERA shop. If you can't find it in the shop or broker, try trade chat