NDOM Sports 4D Cloud Tech Air Cushion Insoles feature advanced air-padded shock absorption with high-rebound foam for superior comfort during运动 activities. The white molded EVA base is textured with ergonomic arch support and ventilation holes, while the prominent blue oval heel pad—embossed with 'NDOM SPORTS'—houses a pressurized air chamber for targeted heel impact reduction. Dual-layer construction combines soft top cushioning with firm structural support, enhancing stability and energy return. Ideal for runners, walkers, and daily wearers seeking relief from foot fatigue, these insoles are lightweight, breathable, and compatible with most athletic and casual footwear. Designed for high-elasticity performance, they reduce joint stress and improve posture alignment. Perfect for gym sessions, long walks, or travel—delivering cloud-like softness without compromising responsiveness. The '4D' tech refers to multi-directional compression resistance, while 'Cloud Tech' highlights the airy, weightless feel. Machine-washable top cover ensures hygiene and longevity.