Since the 1970s, Sorbothane has been blasted into space, assisted in the operating room, advanced satellite technology and cushioned the ride of many a runner. Not quite liquid, not quite solid, Sorbothane is a proprietary visco-elastic polymer that outperforms rubber and other polyurethanes on every level. As an insole material, Sorbothane's most noticeable feature is its ability to absorb up to 94.7% impact shock. But it also provides energy return and displays a unique ability to return to its original shape between steps, ensuring the most effective support and cushioning. And unlike one-dimensional materials, Sorbothane's performance never wavers under any conditions. Not even extreme pressure or temperatures. The introduction of Sorbothane set a new standard for insole performance that remains unmatched today.

The Sorbothane insole product line is exclusive to Penguin Brands Inc™, a leader in shoe care products and laces. The Penguin product line was built with a passion for timeless quality and innovation. Inspired by the youthfulness in every generation, Penguin products fulfill the needs of customers who care about performance, comfort and keeping their shoes looking newer and lasting longer.