Rainbow Sandals White Crystal Collection Flip Flops Large 7.5-8.5 New. Single Arch Narrow Strap Swarovski Crystal Sandals. The Crystal Collection is modeled after the popular single layer leather sandal, with the 1/2" narrow strap embedded with Swarovski® Crystals. • Single Layer Premier & Classic Leather • 1/2" Narrow Leather Strap • Swarovski® Crystal Embedded Strap • Bonded Nylon Thread • Nylon Toe Piece • Box X Stitch Construction • Molds to Your Individual Foot • Triple Glued • Original Rainbow® Woven Label • Rainbow® Lifetime Warranty This sandal is the popular single layer leather with arch support; it has a premier or classic leather top sole and 1/2" narrow strap; which is embedded with genuine Swarovski® Crystals. You get the same great structure using bonded nylon on the nylon toe piece, and box X stitch. The layers are triple glued and it sits on a non-slip Rainbow® bottom. The Rainbow® logo is embossed on the leather top sole.