Here are a few of the differences between kites when it comes to materials.

Of course the stitching and trimming of fabric is as important as the fittings, accessories, and the general ability engineering and design of the kite.
When you shop for a kite at a quality retail location the staff should be able to help you choose the right kite and provide back up service. Ask questions, tell us about yourself, or whoever the kite is for, and don't be afraid to tell us what your budget is. It is our duty to find a product you will be happy with for a long time whether you spend $20 or $200.

Sailcloth

There are many kinds of sailcoth used today. Nylon carrington, Icarex, Polycarbonate, and reinforced mylar, just to name a few. All seem to hold up well, the major difference is the half ounce versus the three quarter ounce (per yard). The half ounce usually has larger squares or rectangles (between ripstop reinforcing ribs) while the three quarter ounce has much smaller squares. Remember, this will not make much difference in the overall weight of a kite. Rods and fittings weigh much, much more. Nylon is the least expensive of all and fades the quickest. Icarex costs more but holds its color longer. Mylar has no stretch, making it a great fabric for central sail panels and scuff points. Some early mylars were prone to tearing and cracking, however, most in use today do not.