A component crafted from polyurethane (PU) and designed for placement within footwear is commonly utilized to enhance comfort, support, or cushioning. These components can take various forms, from full-length replacements for existing insoles to smaller, strategically positioned pads. An example includes a contoured piece positioned beneath the arch of the foot to improve biomechanical alignment.
The incorporation of this material offers advantages such as shock absorption, durability, and versatility in design. Its use contributes to reduced fatigue during prolonged periods of standing or walking. Historically, alternative materials like leather or cork were prevalent; however, synthetic polymers such as this offer improved consistency and performance characteristics.
