Find Your Size: Measure your original insole length and choose the appropriate size according to the size chart(the sixth picture). The rigid plate insole must be 1/4"- 1/2" inches shorter than your original insole. Please make sure that the hallux rigidus insert is placed underneath the soft insole for maximum comfort. The graphite Mortons extension insoles work well in sneakers, hiking boots, and football, tennis, and basketball shoes, not fit with high heels or flip flops. Wide Application & Active Lifestyle: Doctor recommended carbon insoles men can be used for foot problems as well as offer energy return in various sports activities such as basketball, hiking, trekking, running, or daily walking. This rigid carbon fiber shoe insert is great for hiking - protects your feet from rocks and harsh terrain while walking or trekking. Help with step-on ladder rungs, going downstairs, and protecting against stepping on a nail or screw. Foot Recovery: Carbon rigid insole plantar fasciitis keeps your foot flat when your foot heals. Help your feet maintain medical posture and stability, and help with rapid foot healing and recovery. Provides excellent support and protection after an injury or surgery on the toe, foot, ankle, or leg. Carbon fiber foot plate can be used as a post op shoe alternative and Morton's extension orthotic. Premium Carbon Fiber Shoe Insert: The turf toe plate is made of aircraft-grade materials, only 1.3mm thick, lightweight, durable, rigid, and corrosion-free. Do not add weight to the shoes. Carbon fiber insert makes your flimsy shoes more rigid allows you to wear them normally and helps reduce the risk of re-injury. Turf toe insole is sold as 1 Pair and can be reversed to fit the right or left foot. Pain Relief: Carbon fiber insoles for men restrict movement of the metatarsal joints and toes, prevent your toe from over-bending, and alleviate foot pain during play. Perfect for protecting your feet and keeping you comfortable. The carbon fiber insoles women effectively help Hallux Rigidus and Limitus, Turf Toe, Fractures, Arthritis, Sprained Toe, Broken Toe, Stiff Big Toe, Morton's Toe, Plantar Fasciitis, Hammer Toes, Bunion, Chronic Injuries, and Foot Surgery.