Hand-knitted from colorful cotton yarn with pom-poms. My baby often spit up, so I was afraid it would get dirty and couldn't use it, and they grew out of it. It's so cute, I'm hoping someone else can use it, so I'm putting it up for sale. It has been washed once with baby detergent. No fabric softener has been used. When the elastic is stretched to its maximum, it expands to about 30 cm wide. It's made with gentle elastic, so it should be easy to put on and take off. Thank you for looking.