From Sanuk, the Women's Cosmic Shores 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 20% Bloom™REVOLVE foam with anatomical heel cupping and support The textured footbed and toe bar for better grip in wet conditions Non-marking rubber outsole featuring 50% natural rubber with custom molded wave design to expel water and increase traction Flat heel Imported.