Bedhead Swim Legionnaire hats are so soft and comfortable over the ears and back of the neck making them a perfect baby swim hat. Swim hats are made of high quality chlorine resistant stretch nylon knit with quick drying ability, these are best for use in a wet environment - at the beach, lake, swimming pool or splashing about under the hose! Keep this one for splashing fun times Chlorine resistant fabric - pool safe Rated UPF50+ Excellent Protection Tested in accordance with Australia & New Zealand Standards 4399 Sun-Smart recommended brim depths 'Return to' label to help hats get home safely Stretch chin strap with adjustable toggle Best suited to - Babies, crawlers and toddlers still taking naps, being held a lot and not very mobile yet.