Get the performance and comfort of Sorbothane in your casual shoes, every day. Our new Flat Comfort insoles are the last word in state-of-the-art comfort from heel to toe. We start with an advanced polyurethane layer for extra support. Then we top it off with highly absorbent heel and metatarsal inserts that absorb up to 94.7% of impact shock. There’s even a top cover for moisture management. Sorbothane. Comfort in nothing flat.