Blue Mizuno swimsuit, size SS, with BEAT logo. - Brand: Mizuno - Color: Blue - Size: SS - Style: Swimsuit - Features: BEAT logo Thank you for viewing. This is a boy's swimsuit used at Beat Swimming. Used in the 4th grade of elementary school. I think it's 140-150 size. The name is written on the back of the size tag. I will fill it in before shipping. Please understand that this is a used item and has been stored at home.