Along the safety line...the car seat thread and warming weather reminded me of this. Wee difficult child is tiny for his weight. He is solid muscle. He weighs nearly 60 pounds but is no where close to 4ft tall. On the height/weight charts, he's 95th percentile in weight and 30th in height or something like that. He's 6 years old and wears 4T and 4 clothes. He exceeds the weight limit on his life jacket by nearly 15 pounds, but the next size up is too large to stay on him. I've dug trying to find something to fit him and his weight, but no luck. Any ideas?