7mm heel to 5mm toe
Fits in most shoes
Embossed skeleton logo bottom with tough skin
TPU layer under fabric for extreme durability
Absorbs 91% of impact energy in lab testing compared to 53% in other 'performance' insoles (ASTM F 1614 -1999)
Footprint’s proprietary material in the exact same formulation is used by NASA on the ISS for sensitive electronics protection