This Bestway Steel Pro UV Careful above ground pool is a perfect choice for fun for your whole family, especially children! The extra strong sidewall of this pool is made of Tritech. It is a 3 layer reinforced material with a polyester mesh core encased between two layers of high gauge PVC material. The corrosion-resistant steel frame ensures excellent stability. The Shade Play Pool includes a flow control drain valve for easy draining when you are ready to store it at the end of the season. The valve attaches to your garden hose, so water is easily drained. The included shade has a UPF rating of 40+ for sun protection.