There was an 80 size marking only on the light blue striped one. I couldn't find the size for the other two items, so please refer to the sizes listed. (They might be free size) They are not waterproof, so they are not compatible with cloth diapers. Only the orange one has been used. The other two are unused. The light blue stripe is a shirt-like material, suitable for summer. The beige floral pattern is a gauze-like material, suitable for spring and autumn. The bear-patterned orange one is a sweatshirt-like material, suitable for winter. I think they would be good for those seasons (*ˊ˘ˋ*) ★I will note any areas of concern if I notice them, but I mainly sell used items, so please refrain from purchasing if you are concerned about overlooking stains or other imperfections. If there is a change in shipping costs due to combined purchases, I will also offer a discount accordingly, so please comment. (^^)