GEL-DS TRAINER 17 offers lightweight support and cushioning. Ideal for runners who have a light over pronation, those predispose to an inward rolling motion as the foot progresses toward toes off, branching to those who are less likely to over pronate and have more off a neutral stride with less biomechanical problems. I.G.S-Impact guidance system, design philosophy in which the individual components of the shoe work together resulting in a more comfortable step and an improved gait. Solyte-proprietary cushioning material that provides an exceptionally lightweight midsole with escellent bounce back and durability. Rearfoot and Forefoot Gel Cushioning System-Silicone based material placed in critical areas of the sole which dampens shock when the foot hits the ground allowing for a smooth movement through the step and reducing the risk of injury. AHAR+-a thinner lighter version of Asics High Abrasion Resistant rubber. It is placed on heavy contact areas of the outsole to reduce wear. Biomorphic Fit Upper- Stretchy material strategically placed on the upper which reduces bouncing when the shoe moves reducing the risk of blisters and irritation. Improving fit with enhanced performance. P.H.F-Personal heel fit, a special memory foam heel construction that guarantees a perfect fit around the wearers heel creating a personalised fit. Space Trusstic-An advanced system that creates a pocket between the Trusstic system and the midsole, allowing for greater midsole deformation and more efficient foot function. Duomax-A proprietary Asics system that consists of two different density midsole materials and designed to provide smooth overpronation control. Wet Grip Rubber-Sole material made from a special blend of organic and non organic components designed to enhance traction even on wet surfaces. Asymmetric Lacing Design-a lacing system that follows the curve on top of the foot in a natural way, to ensure a perfect fit and reducing the potential or irritation. Discrete Eyestay Lacing-Independently placed eyelets disburse lace tension, creating a customised fitting environment and enhanced upper comfort improving the fit and reducing the risk of irritation. X40 ComforDry Sockliner-Insole placed inside the shoe which provides cushioning with anti microbial properties keeping the foot drier and healthier. Removable Sockliner-A sockliner which can be removed to accomodate a medical orthotic. Guidance Line-Vertical flex groove decouples the tooling along the line of progression for enhanced gait efficiency. 3M Reflective-reflective material that enhances visibility when light is poor.