The MAGNIFY NITRO has the thickest piece of Nitro in the entire line. Simply put, you get MORE OF THE GOOD STUFF! Soft and comfortable, this model is ideal for long comfort. With our 2nd update we were able to throw even more of that good Nitro in a new density for a smooth and stable ride. A premium KNIT upper combines with a molded heel collar to hug your foot in all the right places while remaining breathable. PUMAGRIP gives the best grip on multiple surfaces. The MAGNIFY NITRO is the perfect choice for your next run of any distance where comfort is the top priority.