<p>The <strong>Glycerin 20</strong> features:</p> <ul> <li>Now featuring nitrogen-infused DNA LOFT v3, super soft cushioning optimized to be light weight, responsive, and durable with plush comfort</li> <li>Innovative nitrogen infusion process lets us fine-tune the softness with careful precision so we never sacrifice weight, durability, or responsiveness</li> <li>Cushioning technologies all start with DNA because they react to your unique stride</li> <li>Plush and breathable engineered air mesh upper offers a secure fit, comfortably holding the foot in place</li> <li>Redesigned midsole and outsole offer a widened platform for smoother, easier transitions</li> </ul>