We live in Florida and are out in the sunshine quite a bit! Since babies aren't supposed to be slathered in sunscreen before 6 months old, I was looking for something small enough to protect my newborn's skin. This has worked since she was about 8 pounds (a few weeks old). I expect it will last her at least until 6 months. It has held up through many washings. I soaked it in baby Oxyclean after she pooped all up the back of it, and the stain came out and the fabric didn't fade at all. Very pleased with this purchase; highly recommend!