Lifetime kayaks are made out of very durable long lasting plastic (polyethylene) - the same type of plastic in the outdoor storage sheds and picnic tables. In other words, it will last you a very long time. The sheds are expected to last past ten years with the same plastic material. With uv protectants and good care you can expect at least ten years of good use on the lifetime kayaks. The warranty is 1 year, however, even the picnic tables made of the same material last far longer than their warranty of 2 years. The warranty may change as time goes on as these kayaks are made by Lifetime who is a very large company and the new manufacturer for these kayaks.