An Air-Cooled Memory Foam insole, grippy tread and durable leather upper make the GROMMETZ lace-up school shoes by Skechers a great-value, great-comfort option for busy, growing kids. Make sure to always get the correct size as shoes that are too large can cause torsion-related injury over time. Lace-up front. Air-Cooled Memory Foam insole. Leather upper. High-grip sole.