A seat system for watercraft, preferably inflatable watercraft, the seat system comprising a seat having a base and a backrest, a support system comprising straps removably attaching the seat to the inner sidewall of the watercraft, the seat system alleviating at least a portion of a user's weight from the watercraft floor.

The present disclosure relates generally to knee braces for boats. The knee braces described herein are particularly suitable for use with lightweight, inflatable rafts and kayaks, for example packrafts used in backcountry boating. The knee braces include a fabric body and a plurality of adjustable straps configured to attach the fabric body to a side wall of the boat.

The present invention is method of reducing the longitudinal beam of a kayak in the area of a kayaker's paddle stroke by incorporating a cutaway section. The invention allows the paddle to be closer to the center of gravity of the kayak and thus produce more drive force and less wasted turning force. The paddler doesn't have to reach out so far to the side and therefore has a more comfortable and ergonomic stroke.

An inflatable product is provided including: an inflatable body comprising a bottom sheet extending in a longitudinal direction; a connection sheet connected to the bottom sheet, such that a containing chamber is formed between the connection sheet and the bottom sheet; and a support component disposed within the containing chamber. A protrusion protrudes outwards at a bottom of the inflatable body and is formed by the support component within the containing chamber.

The present disclosure relates generally to knee braces for boats. The knee braces described herein are particularly suitable for use with lightweight, inflatable rafts and kayaks, for example packrafts used in backcountry boating. The knee braces include a fabric body and a plurality of adjustable straps configured to attach the fabric body to a side wall of the boat.

The present disclosure relates generally to knee braces for boats. The knee braces described herein are particularly suitable for use with lightweight, inflatable rafts and kayaks, for example packrafts used in backcountry boating. The knee braces include a fabric body and a plurality of adjustable straps configured to attach the fabric body to a side wall of the boat.

A double-chambers inflatable kayak, including an upper chamber and a lower chamber which are fixedly connected to each other by a connecting portion and between which a cavity is formed, wherein the upper chamber includes a cockpit hole and a first air valve provided on the surface, the cockpit hole being in communication with the cavity, and the first air valve being used to inflate and deflate the upper chamber, and wherein the lower chamber includes a second air valve which is used to inflate and deflate the lower chamber.

A double-chambers inflatable kayak, including an upper chamber and a lower chamber which are fixedly connected to each other by a connecting portion and between which a cavity is formed, wherein the upper chamber includes a cockpit hole and a first air valve provided on the surface, the cockpit hole being in communication with the cavity, and the first air valve being used to inflate and deflate the upper chamber, and wherein the lower chamber includes a second air valve which is used to inflate and deflate the lower chamber.

An inflatable product includes an inflatable body and a tensioning structure disposed in and connected to the inflatable body, for controlling expansion of the inflatable body when the inflatable body is inflated. The tensioning structure comprises a plastic portion connected to the inflatable body by fusion or gluing, and a fabric portion connected to the plastic portion by sewing or gluing.

An inflatable watercraft includes an upper wall, a lower wall connected to the upper wall so as to form a bottom main body, an inner wall extended longitudinally, and an outer wall also extended longitudinally. The inner wall, the outer wall and the upper wall are connected to form a tubular body around the bottom main body. Alternatively, the inner wall, the outer wall and the lower wall are connected to form a tubular body around the bottom main body. When deflated, the tubular body collapses due to gravity so that the outer wall is superposed on the inner wall.