This innovative shoe is packed with proven performance features for the most grueling triathlons. Breathable open mesh upper with supportive synthetic overlays. New Seamless Construction for an improved fit with less irritation. Glow-in-the-dark print on upper for improved visibility. Perfed sockliner helps move moisture away from the footPropulsion Trusstic® stabilizer mimics connective tissue in the Rearfoot and forefoot GEL® cushioning absorbs impactsImpact Guidance System (I.G.S.®) uses linked components to enhance gait. DueMax® support system for improved support and stability. Solyte® midsole helps reduce weight. AHAR® Asics High Abrasion Rubber and DuraSponge® blown rubber soleSole is made with WET GRIP® rubber compound for wet surface traction. Guidance Line. Very good condition. The plastic end of one shoe string is a little damaged and a little bit of the sole on front of right shoe is scraped. See last 2 photos. Both are hardly noticeable. Lots of tread left and very little wear. Smoke free home.