A racquet including a tubular frame formed of a fiber composite material, a pallet and a butt cap. The frame includes first and second end regions and a mid-region. The handle portion includes a distal region, proximal region and a central region positioned between the distal and proximal regions of the handle portion. The central and proximal regions of the handle portion have outer surfaces that define first and second transverse cross-sectional areas, respectively. The second transverse cross-sectional area is larger than the first transverse cross-sectional area. The pallet is coupled to and longitudinally extends over the central region but not over the proximal region of the handle portion. The butt cap is secured to the proximal region and includes a peripheral wall and less than half of the length of the peripheral wall extends over the pallet.

An adjustable flexible device for use in training activities for stick-based sports. The device is comprised of a flexible material provided in a planar surface in a flattened and free state. The device includes a first end, a second end opposite the first end, and a slot located through the material and configured to securely receive the first end. In use, the device is wrapped into a cylindrical shape around the stick and secured in place via the slot and first end coupling. The device material properties provide that it is collapsible.

An adjustable flexible device for use in training activities for stick-based sports. The device is comprised of a flexible material provided in a planar surface in a flattened and free state. The device includes a first end, a second end opposite the first end, and a slot located through the material and configured to securely receive the first end. In use, the device is wrapped into a cylindrical shape around the stick and secured in place via the slot and first end coupling. The device material properties provide that it is collapsible.

A knob sleeve assembly for a ball bat extending along a longitudinal axis and having a tubular handle portion and a knob attached the handle portion. The knob sleeve assembly includes a plurality of annular bodies formed of a resilient material. Each of the bodies defines a central opening for receiving the handle portion of the bat. Each of the bodies has an annular body height within the range of 0.25 to 1.0 inch, and a maximum annular body outer diameter within the range of 1 to 3 inches. The plurality of annular bodies varies from one another according to at least one annular body characteristic. The knob sleeve characteristic is selected from the group consisting of annular body height, maximum annular body outer diameter, weight, color, material durometer value, annular body draft angle and combinations thereof.

A golf club shaft includes: a butt end; a tip end, where the golf club shaft is tapered between the butt end and the tip end; coils of fiber wound helically relative to an axis of the golf club shaft; and one or more layers of composite material wrapped around the coils of fiber and disposed radially outwardly of the coils of fiber.

A golf club shaft includes: a butt end; a tip end, where the golf club shaft is tapered between the butt end and the tip end; coils of fiber wound helically relative to an axis of the golf club shaft; and one or more layers of composite material wrapped around the coils of fiber and disposed radially outwardly of the coils of fiber.

Disclosed is apparatus for use with a sports stick of the type that has a portion which, in use, is typically covered with a grippable material. The apparatus includes a body of heat shrink material, the body being adapted to receive the portion in spaced-relation and further adapted, upon receipt of heat and when in receipt of the portion, to shrink to a working size that surrounds the portion in close-fitting relation. The body can be provided with features that, at least when the body is shrunk to the working size, renders the body grippable. The features can be apertures.

A system for correcting alignment of a golf club is provided. The golf club includes a shaft, a golf club head mounted on a first end of the shaft, a camera embedded in the golf club head. A display module is adapted to display at least a partial view of the camera. Substantial alignment of a face of the golf club head with a target location will be observable in the display as substantial alignment between the target location with an alignment guide. Misalignment of a face of the golf club head with the target location will be observable in the display as a misalignment between the target location with the alignment guide, for which a position of the golf club can be adjusted to bring the face of the golf club head into substantial alignment with the target location.

A golf club grip with reminder rib is provide that has a hollow main body having an inner diameter configured to fit to a shaft, wherein the hollow main body comprises a protruding feature that extends along a length of the hollow main body. The protruding feature protrudes from an outer surface of the hollow main body without requiring the shaft to be inserted in the hollow main body. By not requiring the golf grip to be on the shaft in order to cause a protrusion above the outer surface of the main body, the reminder rib formed by the protruding feature can be ensured to be about 0.040 inches, thus conforming to current rules of golf

Devices with internal flexibility sipes, such as slits, provide improved flexibility, improved cushioning to absorb shock and/or shear forces, and improved stability of support. Siped devices can be used in any existing product that provides or utilizes cushioning and stability. These products include human and other footwear, both soles and uppers, as well as orthotics; athletic, occupational and medical equipment and apparel; padding or cushioning, such as for equipment or tool handles, as well as furniture; balls; tires; and any other structural or support elements in a mechanical, architectural, or any other product.