Foil kites are generally used by seasoned kitesurfers, as they give more speed. The air pockets allow it to move faster. However, once it ends up in the water, it needs to be dried up before it can be launched again. That is why it is seldom used on water but only on snow.
Another gear is the kiteboard. This is generally smaller than a surfboard or windsurf board, but with the same form. It can be the directional type, which is more buoyant and goes in one direction. Or it can be the wakeboard type, which is bi-directional and may be of any width or length. The board has straps for easier attachment to the foot.
Attached to the kite are flying lines. The number of lines and their length may differ for every rider. At the other end of the flying lines is the control bar, which is held by the rider to control the kite. A kite harness worn by the rider is attached to the control bar.
Other equipments that provide safety are life vests and helmets.
There are many sources of kitesurfing gear. You can visit sports stores or websites. You may purchase not only new equipment but used ones as well. Whatever equipment you choose, the important thing is to inspect the equipment not only upon purchase but also before and after you use them.
Defective equipment is one reason why some accidents happen. Make sure that your gear is in good condition always. Lastly, observe all safety rules and code of conduct to avoid danger to others and to you as well.