Plantar Fasciitis? Heel Pain? Tuli’s® Heavy Duty Heel Cups™ are the right heel cups for you Tuli's® Heel Cups are the 1 Podiatrist recommended Heel Cups in the world. Nothing works better or lasts longer than your Tuli’s® Heel Cups. They are literally shock absorbers for your feet Tuli’s® Heavy Duty Heel Cups™ are twice as thick as Tuli’s® Classic Heel Cups™ and offer you the maximum performance and protection when you need it the most. Our Heavy Duty Heel Cups™ additional thickness and support work best in: athletic shoes, cleats, work boots and more spacious lace up shoes. Tuli’s® Heavy Duty Heel Cups™ offer all the comfort you expect from our Classic Heel Cups, and also deliver the heavy duty protection you need from heel strike pain during sports activities such as volleyball, soccer, basketball and tennis. They are ideal for: Plantar Fasciitis Treatment and prevention Achilles tendonitis Sever’s Disease