I've used this about three times since I bought it, and it's clean with no stains or scratches. The elastic stretches well, so I was able to use it without any problems from the newborn stage to around 18 months. I was hesitant to put it on my baby naked, so I put it on over a T-shirt (see the fourth picture). It's the blue oni look! The T-shirt is from chil2 and originally cost around 900 yen. I'm selling it because my child has outgrown it.