Shop Shin Splints Xline TPD50 insoles help reduce the internal rotation of the foot to stabilise the tibia and relieve shin splints Achilles Tendonitis Arch Pain Arthritis Athlete’s Foot Blisters Callus Cavus Foot HomeConditionsShin Splints X-Line TPD Insoles The TPD insole is an orthotic device designed for Tibialis Posterior Dysfunction, a condition that can cause rapidly developing flat feet and pain on the inside of ankle, arch and/or shin. £28.95 + More Stay one steap ahead in the treatment of foot and lower limb conditions. Call the HealthyStep team on 01457 839549