Material Composition: 85% polyester, 15% spandex; Sweat absorbent and quick drying: Quickly absorbs and diffuses sweat, keeping you comfortable even during long periods of exercise.Maximizes the growth of bacteria and reduces unpleasant odors.It can be used as an undergarment for sports wear all year round. (Easy to Wear) Adopts a special manufacturing process called flat seamed stitching, which provides a more comfortable feel and comfortable feel.The stitching is made with genuine needles for excellent durability.(Brushed back for comfortable warmth even on cold days) (Easy to move around) The stretch fabric allows for greater mobility and comfort.Your child will not feel tight on the body, while reducing pressure and improving the fit and allowing it to move smoothly through all kinds of sports movements. UV Protection: Blocks 90% of UV rays and protects against harmful UV rays.You can go into sports without worrying about sunburn.