I bought them for my DD, who has multiple food allergies and severe eczema. She couldn't sleep at night because of itching. After using these amazing sleeves her skin is much better now and she sleeps well at night. It's an excellent product with free first class UK delivery. My daughter is very tiny so I use one size smaller than her age. It's better to measure your child's wingspan before order. They let me exchange for free one of the pair which was wrong size. They even sent me a prepaid envelope to return the unused pair. I'm very pleased with their customer service. Thank you very much for this great invention.