The ASICS® GEL-Noosa Tri™ 8 running shoe drops almost a full ounce in weight, pushing every envelope possible.Perforated sockliner and open mesh upper optimizes moisture drainage and breathability, secured by new lenticular reinforcements.The optional elastic lace and improved heel and tongue grips make the transition smooth from bike to run.Propulsion Trusstic System® makes transition from midstance to toe-off quick and efficient. Impact Guidance System (I.G.S.®) and Guidance Line technologies enhance the foot's natural gait from heel strike to toe-off for superior comfort and performance.GEL® Cushioning System in both the forefoot and rearfoot provide superior cushioning throughout. DuoMax® Support System enhances support and stability for the ultimate ride. Solyte® midsole offers enhanced cushioning and durability in a lightweight package.WET GRIP® outsole gives ultimate grip on multiple surfaces, including wet surfaces, by utilizing a special blend of organic and non-organic components. The perforated sockliner allows for better moisture transport and drainage for the ultimate in comfort and performance. Wt. 8.5 oz.