Peek-a-boo Kids Winter Jumpsuit Ski Wear This is a peek-a-boo design from the time of U-tan! U-tan is cute. The color is yellow, so it's a noticeable color and easy to spot. I didn't see any noticeable stains, but it's a used item, so please check the images carefully before considering a purchase. It will be compressed for shipping and packaged using recycled materials. Thank you for your understanding.