Rainbow Sandals Women's Premier Leather Single Layer Wide Strap. Classic Rainbow Sandals Flip Flop style and feel. Single Layer Arch Design. Whole sizes only. Rainbow and made and held together with strong glue, Rainbow Sandals will stay in one piece and will keep your feet comfortable with sponge rubber that molds to your individual foot shape. With an unbeatable Rainbow Guarantee, your Rainbow Sandals and Footwear will carry your feet for miles.