5.GOOD CHOICE AND GOOD SERVICE: Our carbon fiber insole is the strongest and lightest footplate on the market. It is the preferred product for individuals with an active lifestyle that enjoy sports and outdoor activities. We just want to make you a happier and healthier life. 4.SUITABLE FOR MOST SHOE: The reversible footplate for shoes is sold as a pair. The front and back are exactly the same so they can be worn on your right or left foot.This carbon fiber insole fits different shoes like sneakers, hiking shoes, walking shoes, work boots, and running shoes. This carbon fiber insole can be used for foot health problems as well as while doing various sports activities such as Trekking, Hiking, Basketball, Football, Running, or during daily Walking. This rigid insole prevents your feet from getting tired in your daily activities. 3.HOW TO USE THE CARBON FIBER INSOLE: Installation: Take out your the origin insole of your shoes, Insert the carbon fiber insole and push it in place, And then put the origin insole on the carbon fiber insole . The size of carbon insole should be 1 size smaller than the size of origin removable insole. You could choose your size according to the chart. Please ensure the carbon fiber insole must shorter than your foot, and to fit the carbon fiber insole in the shoe. If in between sizes or half sizes round down to smaller sizes. 2.BENEFITS OF CARBON FIBER INSOLE: The carbon fiber insole is also more elastic, providing support for you. And the toughness of the carbon fiber insole ensures that you will not be deformed under strenuous exercise, protecting your feet from injury.The stiffener carbon fiber insole can reduce foot pain and help foot recovery.It can also ensure your toes no over extending but no restrain of freedom of your toes. Besides, you can use carbon shoe insert for turf Toe; Morton Toe; foot fractures; metatarsal stress fractures;arthritis & most suitable for sesamoiditis; arthritis; forefoot & toe fracture recovery. Importantly, this insole can protect us from sharp object penetrates the shoes. 1.WHY CHOOSE CARBON FIBER INSOLE: Foot movement happens everyday, the choice of insole directly affects your health and comfort.Carbon fiber insole have the features of flat, rigid, and strong, greatly thin which can be used for competitive sports and a variety of foot injury recovery. The carbon fiber insole is specially designed with a 180-degree flat plate, providing you with all-around support. It is real 3K twill carbon fiber insole with only 1.3 mm thick but is two times more rigid than steel inserts.