Exceptional performance meets incredible value in this special silhouette inspired by the natural phenomenon of the Northern Lights. With its balanced support and guided stability, the sleek GT-1000??? 7 caters to runners of all levels. The first GT-1000??? to incorporate FlyteFoam?? technology, this technologically advanced model delivers a smooth, responsive ride that holds up mile after mile. . . Breathable mesh and synthetic upper. SpevaFoam??? 45 Lasting: Employs 45-degree full-length SpevaFoam??? 45 lasting material for a soft platform feel and improved comfort.. Reflectivity: Contains reflective materials designed to enhance visibility during low-light hours.. I.G.S?? (Impact Guidance System) Technology: ASICS design philosophy employs linked componentry to enhance the foot's natural gait from heel strike to toe-off.. FlyteFoam?? Midsole Technology: FlyteFoam technology provides exceptional bounce back and responsiveness, no matter the distance, utilizing organic super fibers to help reduce packing out that traditionally happens with softer, low-density foams.. SpevaFoam??? Midsole Material: Improves bounce back characteristics and decreases midsole breakdown.. Rearfoot Gel?? Technology Cushioning System: Attenuates shock during impact phase and allows for a smooth transition to midstance.. DuoMax?? Support System: A dual-density midsole system positioned to enhance support and stability, positioned sport specifically.. AHAR?? Outsole: Acronym for ASICS High Abrasion Rubber. Placed in critical areas of the outsole for exceptional durability.. Guidance Line?? Midsole Technology: Vertical flex groove decouples the tooling along the line of progression for enhanced gait efficiency.. Trusstic System?? Technology: Reduces the weight of the sole unit while retaining the structural integrity of the shoe.. EVA Sockliner. Weight: 10.23 oz.. Heel Height: