90 White 100 White 110 White (2 pieces) 120 Navy, Heather Gray (1 piece each) The sleeves and side panels are mesh. The mesh is also 100% cotton, which is cool and feels good on the skin, so I bought many of them. The navy and heather gray were worn frequently, so there is some wear around the neck. The white ones were only worn on rare occasions such as for commemorative photos, so they show less wear. However, there are some with slight stains, including faint ones that don't show up in the photos, mainly around the collar. Please refrain from purchasing if you are looking for perfection. 90 White has snap buttons around the neck. 90 White has traces of a name sticker being removed. 120 Heather Gray has a name written on it, which has been blacked out. Summer Short sleeves MUJI (brand) Matching outfits Siblings Twins