Designed to offer comfort, cushioning and stability as you train. The open mesh upper allows the shoe to breathe while in use for greater comfort. Rearfoot GEL provides cushioning in all directions, absorbing impact forces and helping to stabilise the foot during heel contact. California Slip Lasting for stability and comfort. Upper is stitched around a canvas or EVA board and directly attached to the midsole. The ComforDry sockliner can be placed in the shoe for added comfort or removed to accommodate a medical orthotic. The AHAR+ (Asics High Abrasion Rubber) is an extremely tough material placed in critical areas of the shoe to offer exceptional durability. This 'plus' version is lighter than the standard version of AHAR.