A comfortable baby carrier made with breathable mesh material. - Brand: Konny - Size: M - Material: 78% Polyester, 22% Spandex - Color: White I purchased this on Mercari about 5 years ago. Konny was a huge help during my two children's upbringing! This is not the new model, so the size cannot be adjusted. There are no stains, but there are color differences due to age (bleaching might make it a clean white, but I only washed it as it's for a baby). Please only purchase if you understand this. Thank you for looking.