Navy full-zip rash guard made of stretch material, size M. - Size: M - Color: Navy - Design: Full-zip - Material: Stretch material Thank you for viewing. I purchased this rash guard to wear over a swimsuit for a school class, but I never ended up using it. It's suitable for those who will use it next season, or for adults as it's a size M. I believe the retail price was around 5,000 yen. It's made of sturdy fabric! I will wash it at home and ship it after you win the bid.