From Sanuk, the Women's Cosmic Shores Iridescent Flip-Flops feature: Quick drying, water-friendly synthetic upper strap Slip-on design Recycled, padded, neoprene-like lining for comfortable wear Molded Cosmic H2O EVA footbed featuring Bloom™ REVOLVE foam with anatomical heel cupping and arch support The textured footbed and a toe bar for better grip in wet conditions Non-marking rubber outsole featuring natural rubber with custom molded wave design to expel water and increase traction Flat heel Imported.