The ASICS GEL-DS Trainer 25 running shoes give your morning run a serious charge with their lightweight durability, superior responsiveness, and awesome grip, keeping you in control of every step! Predecessor: GEL-DS Trainer 24. Support Type: Neutral. Cushioning: Lightweight, flexible response. Surface: Road. Differential: 8 mm Heel/Toe: 16 mm/8 mm Performance knit textile upper. Seamless upper construction helps reduce the likelihood of irritation. Specialized interior panel provides a great overall fit. Heel Clutching System is made up of an exoskeletal heel counter that promotes an improved fit and increased support. Lightly padded tongue and collar. Soft, breathable fabric lining offers a great in-shoe feel. Cushioned sockliner is contoured like the natural shape of the foot, promoting increased underfoot comfort and support. I.G.S enhances the foots natural gait from heel strike through toe-off. Revolutionary FlyteFoam midsole creates a lightweight, responsive ride. Rearfoot Gel cushioning systems attenuates impacting shock, allowing the foot to move fluidly throughout the gait cycle. Dual-density DuoMax System increases stability and support with reduced weight and enhanced platform comfort. AHAR rubber outsole delivers lasting durability and reliable traction. Propulsion Trusstic Technology creates tension as the foot enters propulsion stage by mimicking your natural connective foot tissue in the foot. Guidance Line technology employs a vertical flex groove that decouples the tooling along the line of progression for maximum stride efficiency. Imported. Measurements: Weight: 8 oz 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.