How to measure:1.Chest:Relax arms at sides.amd pull tape across the fullest part of the bust. 2.waist:Bend to one size to find the natural crease of your waist,this is the slimmest part of the waist. Measure across at this point..and keep tape slightly loose to allow for breathing room. 3.Hips:Stand with feet together,and measure around the fullest part of the hips and rear.and tape should brush across both hipbones. 4.Height:Stand straight with feet together,and begin at the top of the head and pull tape staight down to the floor. Male size： S: height 64-66inch,chest 35.5-36.5inch,waist 30.5-31.5inch,hip 35.5-36.5inch M:height 66-68inch,chest 36.5-37.5inch,waist 32-33inch,hip 37-38inch L:height 68-70inch,chest 37.5-38.5inch,waist 33-34inch,hip 38-39inch XL:height 70-72inch,chest 39-40inch,waist 34-35inch,hip 39-40inch XXL:height 72-74inch,chest 40-41inch,waist 35.5-36.5inch,hip 40.5-41.5inch XXXL:height 74-76inch,chest 41-42inch,waist 36.5-37.5inch,hip 41.5-42.5inch Female size: S:height 62-64inch,chest 32-33inch,waist 25-26inch,hip 35.5-36.5inch M:height 64-66inch,chest 33.5-34.5inch,waist 26-27inch,hip 36.5-37.5inch L:height 66-68inch,chest 34.5-35.5inch,waist 27-28inch,hip 37.5-38.5inch XL:height 68-70inch,chest 35.5-36.5inch,waist 28.5-29.5inch,hip 39-40inch XXL:height 70-72inch,chest 37-38inch,waist 29.5-30.5inch,hip 40-41inch XXXL :height 72-74inch,chest 38-39inch,waist 30.5-31.5inch,hip 41-42inch