ASICS Kids' Gel-Contend 4 Gs Running Shoe 100% Synthetic Imported Rubber sole Rearfoot gel cushioning system: attenuates shock during impact phase and allows for a smooth transition to midstance. Reinforced stitched toe cap: the outsole is stitched directly to the upper for exceptional durability. Removable sockliner: a sockliner which can be removed to accommodate a medical orthotic.