Long-sleeved T-shirt in off-white with a thin striped design, featuring wooden buttons for a casual style. The thin long sleeves are not bulky, making it easy to use for babies who tend to get hot in slightly chilly seasons. Since it's thin, the sleeves can also be folded up ◎ Although it's sized for 3-6 months, it seems like it can be used up to around 10 months. (The sleeves are a bit narrow)