Details Asics Hyper-Rocketgirl™ XC cross country spike brings together lightweight traction and a performance fit. The tried-and-true sole unit features a supportive contoured arch, 5-spike configuration and lightweight breathable mesh for comfort and control. Includes 9mm pyramid spikes and a wrench. Shoe Specifications Upper Lightweight breathable mesh Midsole Trusstic System® : gives shoes stability by preventing them from twisting during movement with shapes designed according to the motion characteristics in the sport and the purpose of the shoes. The shape of the Trusstic™ is tailored to the type of shoe according to the motions used in the sport to keep the shoes from twisting. Outsole Solid Rubber Outsole: Provides enhanced durability and traction 5 spike configuration Heel N/A Forefoot N/A Offset N/A Width B Weight 4.5 oz ASICS Hyper-Rocketgirl XC Women's