Asics, gt-1000 4 gs, white/pool blue/diva pink, last pair size us2 the gt-1000 4 gs is a supportive and well-cushioned running shoe for young athletes. This shoe receives a new upper design and a new fitting sockliner that provides a visual size guide to ensure a perfect fit for growing feet. The gt-1000 4 features duomax technology to provide support and stability, while a rearfoot gel unit works to absorb shock while running. Removable sockliner an eva or speva sockliner moulded to the shape of the foot, which can be removed to accommodate a medical orthotic 3m reflectivity special reflective material which enhances visibility in poor light. 3m scotchlite is a registered trademark of the 3m company duomax a dual-density midsole system positioned to enhance support and stability rearfoot gel cushioning attenuates shock during impact phase and allows for a smooth transition to midstance.