SIZE SELECTION AND QUALITY GUARANTEE:Choose a size according to your usual shoe size. 90% people don’t need time to get used to this insole. Some need 1-3days to adapt to this insole. If you are not completely satisfied with your PCSsole insoles, our friendly customer service staff will be pleased to assist you with any questions. EASY TO CHANGE IN DIFFERENT SHOES: With thin and light weight design, 3/4 length insoles can fit comfortably in most shoes. Breathable top layer, anti-slip material makes it stable in your shoes. These orthotic insoles are great for athletic shoes, casual shoes, dress shoes, canvas, running shoes, work shoes and boots. ORTHOTICS INSOLES CORRECT OVER-PRONATION, SUPINATION (O / X Leg): The structured deep heel cup provides perfect wrapping, helps stabilize the foot in the right position and adjust your body to normal alignment. It offers better balance and control while walking or running, reduces the friction between feet and shoes and improves walking posture. PAIN RELIEF FROM FLAT FEET: PCSsole 3/4 Length of orthotic insoles provides anatomical arch support and comfort for those with flat feet, plantar fasciitis, heel spurs, high arch, overpronation, fallen arch and heel pain. Once standing on these insoles, believe me, you don’t feel hardness, but comfort. STURDY ARCH SUPPORT RELIEVE FEET PAIN EFFECTIVELY: 3.5cm Firm EVA High arch provides perfect foot arch support, reduce the pressure on the heel. The high hard arch design fit for your arch easily and absorb the impact of each step during exercise or walking and evenly distributes foot pressure and reduces fatigue. You will feel pain relief the first time wearing this hard foot support insole.