ASICS GT-2170 GORE-TEX Trail Running Shoes ** NEW weight reduction** - ASICS have looked at the design of this shoe and have removed any extra cosmetic designs not necessary to help reduce the weight of the shoe **NEW Discrete Eyestay** - This is where the laces are fed through, which helps to reduce irritation and improve fit. **NEW one-piece GEL heel unit** - This has been designed with a sculpted shape to optimise cushioning. Solyte Midsole - Proprietary cushioning material that provides an exceptionally lightweight midsole with excellent bounce-back and durability. DuoMax - A proprietary ASICS system that consists of two different density midsole materials and designed to provide guidance and control to prevent overpronation.