A grip for a golf club has a higher gripping force than in the past, and with a good gripping feel. A grip has a cylindrical part and a plurality of projections are formed on the surface. First projections are formed in a scale shape, and when a golfer swings the golf club, these are formed to dig into the golfer's hand and gloves. Of the oblique sides in the circumferential direction of the first projections, the sides nearer the reference point are the first oblique sides, and the sides farther from the reference point are the second oblique sides. The first oblique sides are formed to have a greater slope than the second oblique sides. The grip obtains a higher grip force by the angle of the oblique sides and the scale-shaped shape. As a result, the trajectory of the ball struck by the golf club is stable, and it is possible to extend the flying distance of the ball.

The present disclosure relates to a shaft for athletic activities comprising, along at least a part of the length of the shaft: an internal wall (31) made of a first fiber-reinforced composite; and an external wall (30), fixed to the internal wall, and made of a second fiber-reinforced composite, wherein one or more cavities (32A, 32B, 32C) are present between the internal wall and the external wall.

A golf club assembly includes a golf club and a cover for the golf club handle. The cover includes a panel having a first plurality of apertures on a first edge of the panel and a second plurality of apertures on a second edge of the panel. A fastener is on a top edge of the panel. Lacing extends through the first plurality of apertures and the second plurality of apertures. The cover has a first mode in which the lacing extends from one of the first plurality of apertures to the second plurality of apertures to form the panel into a cylinder shape. The cylindrical shape is installed over a grip portion of the golf club. The cover has a second mode in which the lacing does not extend through the plurality of apertures and the cover defines a lay flat orientation.

A golf club assembly includes a golf club and a cover for the golf club handle. The cover includes a panel having a first plurality of apertures on a first edge of the panel and a second plurality of apertures on a second edge of the panel. A fastener is on a top edge of the panel. Lacing extends through the first plurality of apertures and the second plurality of apertures. The cover has a first mode in which the lacing extends from one of the first plurality of apertures to the second plurality of apertures to form the panel into a cylinder shape. The cylindrical shape is installed over a grip portion of the golf club. The cover has a second mode in which the lacing does not extend through the plurality of apertures and the cover defines a lay flat orientation.

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 interchangeable and weight adjustable golf grip including at least an end cap body having integral receiving ports adapted to receive variable weights, electronic chips, sensors, gauges, lasers, cameras, or biometrics within and wherein the end cap is capable of housing the various weights, chips, sensors, etc. within the end cap so that a player can interchange the weights or sensors without removing the golf grip from the shaft in order to make adjustments and so that the player can play golf without removing any other portions of the grip. Further, the invention includes contemplation of a tip collette with integral receiving ports adapted to also harbor similar weights, or sensors, etc. Data from the sensors may be transmitted by Bluetooth transmission to a smartphone or a ball launch monitor system for analysis.

An interchangeable and weight adjustable golf grip including at least an end cap body having integral receiving ports adapted to receive variable weights, electronic chips, sensors, gauges, lasers, cameras, or biometrics within and wherein the end cap is capable of housing the various weights, chips, sensors, etc. within the end cap so that a player can interchange the weights or sensors without removing the golf grip from the shaft in order to make adjustments and so that the player can play golf without removing any other portions of the grip. Further, the invention includes contemplation of a tip collette with integral receiving ports adapted to also harbor similar weights, or sensors, etc. Data from the sensors may be transmitted by Bluetooth transmission to a smartphone or a ball launch monitor system for analysis.

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 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.