Product Information SKU: #8621177Keep the competition on their toes when you hit the course in the ASICS? GEL-Hyper Speed? 7 running shoe!Successor to the GEL-Hyper Speed? 6.A racing flat built for the runner who has a serious case of quick feet.Ideal for speed-training and on race day.Breathable mesh upper with light synthetic overlays. Seamless upper design helps reduce the likelihood of irritation.Plush tongue and collar for added comfort. Breathable fabric lining promotes a comfortable next-to-foot feel. Perforated foam insole optimizes moisture drainage for a cooler, drier feel. Rearfoot Gel? cushioning system attenuates impacting shock and allows for a smooth transition to midstance.Heel/Toe: 16 mm/10 mmDifferential: 6 mmMagic Sole™ features a ventilated midsole and outsole to reduce weight and enhance breathability.DuraSponge? outsole material is comprised of a blown AHAR? rubber for superior cushioning and long-lasting wear.Guidance Line? promotes a smooth ride. Imported. Product measurements were taken using size 8.5, width B - Medium. Please note that measurements may vary by size.Weight of footwear is based on a single item, not a pair.Measurements: Weight: 7 oz