Patagonia Kids swimwear rash guard. Size M (10), which I believe is equivalent to a Japanese size of around 125-135 cm. My child wore this around that size. As shown in the photos, there is a snag in the thread on the inside hem of the back. Please be aware of this (photos of both the front and back are included). Other than that, I don't think there are any other noticeable issues. Please feel free to ask if you have any questions.