Our grandson loves his "Loopers". He is 5 months old and is in the 60 percentile. He has blue eyes and when outside will close his eyes and turn away from anything to bright. After purchasing these Looping-Infant sunglasses, I took him outside in the sun where he did his normal close the eyes and turn the head. I put these sunglasses on him and he opened his eyes looking at me and started laughing;) He had obvious relief. They appear to be very comfortable for him and he leaves them on. They are so cute; we purchased the dark grey/anise.