Wear Your Favorite Slippers and Enjoy a Custom Fit, Water-Friendly Design, and Ventilated Forefoot for Breathability. Croslite™ Insoles Wrap Your Feet with Excellent Arch Support. Crocs™ Classic, the Perfect Shoe for the Beach or Boat. Buy a Pair. Technical Details: Ventilation Ports Provide Breathability and Help Water Drain. Fully Molded Croslite™ Material for Signature Crocs Comfort. Heel Strap Provides a Secure Fit. It is easy to clean and dries quickly. Lightweight, Mark-Free Soles.