These are definitely one-time-use. My niece wore the light pink ones for Easter, she was indoors with shoes on the entire time. They began to pill almost immediately, she then pulled on the pills and they just shredded. I was trying to save money because toddlers outgrow their clothing so quickly, but this just wasn't worth it. I would have expected her to be able to wear them 3 or 4 times before they pilled that badly, not 3 or 4 hours.