RT250413 is a high-rebound “popcorn” PU insole engineered for exceptional comfort and natural height enhancement. The popcorn-style PU structure compresses and rebounds rapidly under pressure, delivering a uniquely soft yet supportive stepping experience. This material is widely recognized in the footwear industry for its superior energy return, lightweight feel, and long-term durability—making the insole ideal both for all-day wear and lifestyle comfort applications.

One of the standout features of RT250413 is its built-in height increase design. The heel area is molded with a gradual lift that offers discreet elevation while maintaining stable foot alignment. Unlike traditional hard lift insoles, the PU popcorn structure adapts smoothly to foot pressure, allowing users to enjoy added height without discomfort. The raised heel also enhances gait efficiency and helps reduce pressure on the Achilles and lower leg.

The top surface features a soft texture with micro-perforated patterning for improved ventilation. This helps manage heat and moisture, making the insole suitable for daily wear in work shoes, casual sneakers, fashion footwear and athleisure models. The PU material maintains its elasticity over long use cycles, resisting bottoming-out even under heavier loads.