1. Why do you need a plantar fasciitis night splint? -- Use a plantar fasciitis splint at night to keep the foot extended and provide orthopedic support for the foot to reduce arch pain in the morning caused by heel, ankle, plantar fasciitis, Achilles tendinitis, heel spurs, foot drops, flat feet, etc The average size fits most adult feet (left or right) and is suitable for 8 to 15 inches (about 20.3 to 38.1 cm) around the ankle.2. Memory Foam Padding provides superior comfort -- The Memory foam padding contour fits your foot shape for targeted support and optimal comfort -- it relieves pressure points and reduces shifting while moving. Other brands of foam padding can't provide the good feeling of memory foam.3. Double dorsiflexion straps for better support - plantar fasciitis Night Splints come with two adjustable dorsiflexion straps to ensure the splints remain in the correct position and comfortable throughout the night without twisting or sliding. Other brands just have a back strap that doesn't provide as good support as ours.4. How to properly use plantar fasciitis foot protection? -- After receiving your foot guard, please adjust the flexible aluminum bar at the instep as required to maintain the feet at an effective and comfortable support Angle of 85 to 90. Then wear the brace properly to relieve foot pain and help you sleep all night.5. Open all adjustment straps on the back of the foot, loosen the bend part of the flexible steel strap - adjust the Velcro on the palm and ankle into place and glue it on - adjust to the correct Angle and secure with the instep strap