Multi-Layered that provides cushioning and protection for the heel. Its perfect to pair with your running, cross trainer, casual, dress and work shoes for diminishing pain related to over-pronation (mild to moderate), plantar fasciitis/heel pain, foot, arch & heel pain, calluses, hammertoes & claw toe, bunions, neuromas, ankle & knee pains. Provides outstanding balance between firm yet flexible Support with a deeper heel cup to provide better control and fit.