The Footprint Kingfoam Flat Lo Insoles feature a 3mm zero-drop design that preserves natural foot mechanics while providing a cloud-like feel in minimalist or tight-fitting footwear. Built with the same high-performance Kingfoam used by NASA to protect sensitive electronics, these insoles are lab-tested to absorb over 90% of shock energy, effectively shielding your joints from the repetitive strain of high-impact landings. Because they are completely flat without a raised arch, they offer a non-intrusive upgrade for skaters and athletes who prefer their shoe's original board feel but need the professional-grade protection required to prevent long-term fatigue and bruises.