ASICS Women's GEL-Volleycross Volleyball Shoe Synthetic and mesh Rubber sole GEL Cushioning System attenuates shock during impact phase and toe-off phase Solyte midsole material is lighter than ASICS' standard EVA and SpEVA, combined with improved cushioning and durability PHF (Personal Heel Fit) features a Memory foam lined heel collar that molds to the athlete's heel, creating a personalized fit Open mesh upper provides excellent comfort and breathability