Slip-Ins Trainer with Air-Cooled Memory Foam Skechers Hands Free Slip-Ins Air Cooled Memory Foam Skech-Air, Heel Pillow Adaptive Closure, Machine Washable. This boys' trainer features a breathable athletic mesh upper with a stretch-fit collar and a supportive cushioned insole. The Skechers Hands-Free Slip-Ins design allows for easy on and off, while the Air-Cooled Memory Foam provides all-day comfort. The Skech-Air midsole offers enhanced support and shock absorption. Additionally, the heel pillow ensures a secure fit, and the shoe is machine washable for easy care.