Abstract: A multi-layer exercise mat including a first layer including an outer surface and an opposing inner surface, the opposing inner surface of the first layer including a first array of three-dimensional features integral with the first layer; and a second layer including an outer surface and an opposing inner surface, the opposing inner surface of the second layer including a second array of three-dimensional features integral with the second layer. The first and second arrays of three-dimensional features are configured to grip each other to removably secure the inner surface of the first layer to the inner surface of the second layer.

Abstract: A multi-layer exercise mat including a first layer including an outer surface and an opposing inner surface, the opposing inner surface of the first layer including a first array of three-dimensional features integral with the first layer; and a second layer including an outer surface and an opposing inner surface, the opposing inner surface of the second layer including a second array of three-dimensional features integral with the second layer. The first and second arrays of three-dimensional features are configured to grip each other to removably secure the inner surface of the first layer to the inner surface of the second layer.

Abstract: A footbed for use in an article of footwear, the footbed comprising a conforming layer having an initial, substantially uniform thickness of 3 to 9 millimeters, and comprising a foam that permanently conforms to a shape of a foot after wear; and a pressure-spreading layer disposed on the conforming layer, having a thickness of 2 to 4 millimeters, and comprising a resilient foam.

Abstract: A multilayer article that includes a first polymer foam layer; a second polymer foam layer; and a carbon layer located between the first polymer foam layer and the second polymer foam layer. An article, such as a helmet, can comprise the multilayer article.

Abstract: A removable basketball netting assembly is disclosed for use with a basketball goal which includes a backboard, a rim, and a support ledge to secure; the rim to the backboard. The assembly includes a ring having a first portion and a second portion where the first portion has two opposing sides, a top, an interior surface, and at least one opening through the top of the first portion. The second portion includes a top, one side, and an interior surface. The first and second portions are removably engaged with the rim whereby the second portion accommodates the support ledge. A plurality of protrusions integral to the interior surface of the two sides are included for temporarily securing the ring to the rim. A plurality of cutouts through the ring are provided for receiving upper cords of a net so that the net depends from the ring. A placement device is utilized for engaging and disengaging the ring with the rim.