Crocs comfort Level 2. The Neria Pro II Graphic Clog is proof that being professional doesnt have to be boring! Thermoplastic (EVA) upper with a fun graphic print for added appeal. Fit is relaxed, with extra room in the back of the heel for easy on and off. Double Crocs Comfort: Deeply cushioned footbed paired with supportive foam outsoles. Crocs Lock slip-resistant tread. Imported. Weight of footwear is based on a single item, not a pair.