Topeter’s padded compression shirt is made of 80% polyester and 20% spandex fabric. Youth padded tank top size info: YS: Length: 17.7 inch/45cm, Chest: 26 inch/66cm, Suggest Height: 39-47 inch/ 100-120cm, Suggest Weight: 39-55lb/ 18-25kg; YM: Length: 19.3 inch/49cm, Chest: 27.9 inch/71cm, Suggest Height: 47-51 inch/ 120-130cm, Suggest Weight: 55-72lb/ 25-33kg; YL: Length: 20.8 inch/53cm, Chest: 29.9 inch/76cm, Suggest Height: 51-55 inch/ 130-140cm, Suggest Weight: 72-88lb/ 33-40kg; YXL: Length: 22.4 inch/57cm, Chest: 31.8 inch/81cm, Suggest Height: 55-59 inch/ 140-150cm, Suggest Weight: 88-105lb/ 40-48kg. Kids padded Compression Shorts Size info: YS: Waist: 20-inch/50cm, Length: 12.6-inch/32cm, Hip: 12.6-inch/32cm, Leg Opening: 5.11-inch/13cm, Inseam: 6.14-inch/15.6cm, Suggest Height: 2.95-3.6’/90-110cm, Suggest Weight: 33-50.7lb/15-23kg; YM: Waist: 21.25-inch/54cm, Length: 12.99-inch/33cm, Hip: 13.38-inch/34cm, Leg Opening: 5.51-inch/14cm, Inseam: 6.14-inch/15.6cm, Suggest Height: 3.6 - 3.94’/110-120cm, Suggest Weight: 50.7-68.34lb/23-31kg; YL: Waist: 22.83-inch/58cm, Length: 13.38-inch/34cm, Hip: 14.17-inch/36cm, Leg Opening: 5.9-inch/15cm, Inseam: 6.3-inch/16cm, Suggest Height: 3.94 - 4.43’/120-135cm, Suggest Weight: 68.34-85.98lb/31-39kg; YXL: Waist: 24.4-inch/62cm, Length: 13.78-inch/35cm, Hip: 14.96-inch/38cm, Leg Opening: 6.3-inch/16cm, Inseam: 6.3-inch/16cm, Suggest Height: 4.43 - 4.76’/135-145cm, Suggest Weight: 85.98-103.6lb/39-47kg. Cleaning Attention: Compression padded shorts are NOT machine washable, only hand wash. After full contact with water, hang in a cool place to air dry, avoid direct sunlight or in an environment where the temperature is too high. And do not soak.