Bests & Worsts Reviews from Amazon

I am really disappointed in these pulls ups. I was very excited about all the benefits described with these including the easy off and on experience for my daughter and the cooling which I thought would help. I ordered 2 packages of these only to find out that the 'cooling' was from these scratchy crystal type things on the inside of the pull ups. My daughter is constantly irritated in her private area from the rough scratchiness of these pull ups. Why would the outside of these be softer than the inside??