Description: please select the size through age and height, and if your child's weight is higher than average, or you want the suit roomy ,we suggest you order one size up. if you uncertain , please offer us the size (chest, waist, hip , height)and weight,we will help you select it. It's soft,comfortable,breathable and quick dry fabric. super flexible. protect you from sunburn.keep you warm when swim. size Description: size 104(2-3 Years) fit for (weight:under 33lbs) (height:3'-3'2") size 116(4-5 Years) fit for (weight:34.2lbs-38.6lbs) (height:3'4"-3'7") size 128(5-6 Years) fit for (weight:38.6lbs-44lbs) (height:3'7"-3'11") size 140(6-8 Years) fit for (weight:42lbs-50lbs) (height:3'11"-4'3") size 152(8-12 Years) fit for (weight:50lbs-68.3lbs) (height:4'4"-4'9") size 164(12-14 Years) fit for (weight:68.3lbs-82.5lbs) (height:4'9"-5') size 176(14-15 Years) fit for (weight:82.5lbs-88.2lbs) (height:5'1"-5'3") There was a slight color difference due to monitors.Size has deviation due to manual measuring. please feel free to contact us if you have any problem.loveUshop will do our best.