Multi layer material design enhances insole performance: thickened foam design is adopted to enhance the elastic performance of insole and provide good arch support. High elastic PU cushioning layers at the front and rear provide additional support. U-shaped deep heel cups enhance heel stability. The surface is covered with breathable materials, which can absorb sweat and deodorize, improving comfort. Advanced thick and comfortable curved support insole: The insole/insole is designed specifically for men or women with foot pain or arch pain. Good arch support, flat feet, relieve pain, and provide long-lasting comfort. Helps to treat heel tendinitis, plantar fasciitis, arch pain and arch strain, high arch and hollow foot, flat foot and arch prolapse, hallucitis, varus, varus, metatarsal pain, heel pain and spur, Morton's neuroma, and tibial splints. The hiking/walking sports insole is specially designed for various shoes and boots: replaceable memory foam insole, suitable for sports shoes, sports shoes, skates, casual shoes, running shoes, hiking boots, walking shoes, skateboard shoes, ski boots, heavy duty work boots, etc. How to adapt to your new insole faster: Replace the existing insole in your shoes; Adjust the size and trim the insole to fit your shoes. Initially, it is recommended to use new insoles for 3-4 hours per day, then gradually increase the daily usage time. Usually, in the first few days, you will feel a bit tight in your shoes, and you will feel some pressure on the soles of your feet, which will take your feet almost a week to adapt to the new insole.