The Footprint Kingfoam Elite Mid Classic features a 7mm heel to 5mm toe profile and is designed to fit most shoe types. It includes an embossed skeleton logo on the bottom, crafted with durable tough skin, and has a TPU layer beneath the fabric for exceptional durability. In lab tests, these insoles absorb 91% of impact energy, outperforming other performance insoles that absorb only 53%. Notably, Footprint’s proprietary material is formulated in the same way as that used by NASA on the International Space Station for the protection of sensitive electronics.