Maximize your comfort and minimize your risk in Skechers Hands Free Slip-ins® Work™ Slip-Resistant: Carbix - Yunia. Designed with our exclusive Heel Pillow™, this athletic slip-on features a mesh and synthetic upper with fixed stretch laces, a cushioned Skechers Air-Cooled Memory Foam® insole, a slip-resistant outsole, and a carbon nano toe.