I purchased the white long sleeeve shirt for my 7 yr old. The material is thin enough to see through the shirt, and the cut is much more fitted in the body of shirt. Compared to sleeves, it just seemed like it may have been made wrong. My son still wears it and enjoys the fact it is thin enough to wear on warmer days. I'm just not sure how long this particular shirt will hold up over time due to its specific quality. It's the first time I've had a shirt made like this from Quicksilver- which was a little disappointing, I'm hoping it's just a rare incident.