Patent attributes
A shoe sole includes a footbed, a midsole, and an outsole. The footbed includes deformable semi-tubular elements that protrude downward and are received in corresponding trough-shaped cavities of the midsole, which provide cushioning when the semi-tubular elements are compressed under load, and also provide a spring return effect. The semi-tubular elements may have a depth greater than a depth of a corresponding trough shaped cavity whereby the footbed is held in a raised position above the top surface of the midsole. The separation between the footbed and the top surface of the midsole is smaller in forefoot area and greater in the heel area. The separation provides shock absorption and resilience in the shoe because it allows the semi-tubular elements to deform under load and absorb impact shocks.
