100% PolyesterWelSoft Fleece Children's Pajama SetShipping in 24 HoursThe size on the mannequin is 8-9 Years old. SIZE (Age) CHEST WAIST LENGTH HINESS PANTS LENGTH 6-7 80 78 54 90 82 8-9 82 80 56 96 84 10-11 85 83 58 102 86 12-13 88 86 60 108 88 14-15 91 89 62 84 90