The most common suitcase kayak is Folding Kayak.
The origami-style folding Folding Kayak are made from a single sheet of hard, corrugated plastic (polypropylene, to be exact). They come folded up in a backpack and are pretty easily assembled into 12-16 ft long, seafaring vessels.
Traveling with an Folding Kayak is pretty straightforward. If you’re flying, these boats can be checked on a plane, and in most cases, will count as carry-on baggage (with no extra fee). But, to travel with your kayak , you’ll need to purchase the Folding Kayak Pack or the Inlet Pack, which is a heavy-duty nylon backpack that fits the kayak and other accessories.