I love this shirt! I would like to snag it for my son but I'm not sure what size I should go for if I did win. Do you have any personal experience with this shirt or brand? What's your suggestion on size for a skinny, but somewhat tall 9 year old boy? I just don't want to pick the wrong size and then it ending up being a belly shirt every time he lifts his arms...of which he would adamantly disapprove, ha. I'm sorry to ask so many questions...I do love the shirt and intend on bidding at the end for sure - I jut want to make sure a size is available that will fit him properly. Thank you for a nice auction!