ASICS GEL-DS TRAINER 17:: Legendary for its lightweight supportive ride, this trainer is better than ever thanks to a new comfortable, breathable upper, Clutch Collar System fit, and Guidance Line gait optimization. Light enough for training and racing.

• Clutch Collar System
  A descendant of the Heel Clutching System, an Endoskelatal collar compliments the exoskelatal heel counter for a uniquely secure fit.
• Guidance Line
  Vertical flex groove decouples the tooling along the line of progression for enhanced gait efficiency.
• Propulsion Trusstic
  Mimics connective tissue in the foot by creating tension as foot enters propulsion stage.
• Biomorphic Fit Upper
  Stretch material strategically placed on the upper helps to reduce buckling and the potential for irritation.