Thank you for looking! ♪ - Size: 50-60 - Material: Cotton I haven't used the white one much. The blue-gray and striped ones have been worn a few times over 1-2 months, so they show some signs of wear! How about these as innerwear, perfect for the upcoming season? (^^) I even had my child wear them on their own in the summer (lol) ⭐︎ Immediate purchase welcome ⭐︎ Please refrain from purchasing if you are sensitive about this, as it is stored by an amateur. If you have any other questions, please feel free to comment.