Elevating your summer style has never been easier, and it's all thanks to the Seychelles Skyscraper Black Flatform Thong Slide Sandals! The Y2K-inspired vibes of these must-have sandals will make you want to wear them all season long, while the simple, slip-on design features a smooth faux leather thong-style upper and a 2.5"" flatform sole that'll take all your looks to new stylish heights. 2. 5" flatform heel. Smooth cushioned insole. Foam sole has nonskid markings. Man made materials. Imported. Lulus | Skyscraper Black Flatform Thong Slide Sandal Heels | Size 10.