Dr.Foot Adjustable Orthopedic Heel Lift Inserts, Height Increase Insole for Leg Length Discrepancies, Heel Spurs, Heel Pain, Sports Injuries, and Achilles Tendonitis (Beige, 3 Layers). Dr. Foot’s Adjustable Orthopedic Heel Lift Inserts allow you to build up the height by adding layers yourself;.