Feature: Padding: 3 effective pads on the ribs, lower back Fit: compression fit with high elastic material Material: 80% polyester + 20% spandex Collar: Crew neck Gender: Youth, kids, boys, girls Wash attention: Cool wash it gently by hand, hang flat to dry, please DO NOT iron, tumble,spin dry or bleach. Size info: YS: Length: 17.7in/45cm, Chest: 26in/66cm,Suggest Height: 3.2-3.9ft/100-120cm, Suggest Weight: 39-55lb/ 18-25kg YM: Length: 19.3in/49cm, Chest: 27.9in/71cm,Suggest Height: 43.9-4.2ft/120-130cm, Suggest Weight: 55-72lb/ 25-33kg YL: Length: 20.8in/53cm, Chest: 29.9in/76cm,Suggest Height: 4.2-4.5ft/130-140cm, Suggest Weight: 72-88lb/ 33-40kg YXL: Length: 22.4in/57cm, Chest: 31.8in/81cm,Suggest Height: 4.5-4.9ft/140-150cm, Suggest Weight: 88-105lb/ 40-48kg Note: 1.Please allow 0.39”- 0.78” differs due to manual measurement 2.Please choose the size according to our size chart