Abstract: A tennis racket having an optimized striking area and a ball collection portion. The tennis racket includes a handle, an oval frame attached to the handle, the oval frame including a U-shaped indentation, a plurality of vertical and horizontal strings attached to the oval frame, and a replaceable clip, wherein the plurality of vertical and horizontal strings form a sweet spot area, the sweet spot area having a size, and wherein a depth of the U-shaped indentation affects the size of the sweet spot area. The tennis racket may include one or more bars attached to the oval frame to further manage the sweet spot area.

Abstract: A sneaker-like or exercise shoe with an adjustable, posterior heel strap that provides for a one size fits all configuration. A plurality of peripheral hook members are positioned around the mid-section and toe portion of the shoe for attaching an elastic or stretchable band. Specifically, the plurality of hook members are positioned (A) on the inside of the foot at the medial portion of the 1st metatarsal distal end; (B) on the outside of the foot at the lateral medial portion of the 5th metatarsal distal end; and (C) on the distal end of the 2nd metatarsal. At the back of the shoe the strap goes around the posterior calcaneus of a foot for adjustable sizes.