Warm up and take off towards a new PR in the reliable RoadHawk FF.Predecessor: None. Support Type: Neutral. Cushioning: Lightweight, flexible response. Surface: Road. Differential: 8 mm.Breathable mesh and synthetic upper materials. Seamless upper construction helps reduce the likelihood of irritation. Lace-up closure. Padded tongue and collar. Breathable fabric lining offers a great in-shoe feel. Removable ComforDry™ sockliner. FlyteFoam™ midsole creates a lightweight, responsive ride.Heel/Toe: 19 mm/11 mm.High-abrasion AHAR® rubber outsole. SpEVA® 45 lasting. 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.