There is no size on it but I'm assuming it's 12 mo. My daughter is kinda chunky and it fit her good, so it may be big but it has elastic and will be covering a diaper so it may work!
Right now she's almost 9 months... But only wearing 6 month pants ( which are kinda big on her) I would love to have it. I'm just worried it might not fit in time. I'll throw a bid out tho just in case cause I think it's so cute :-)