I ordered this shirt for my son for Christmas. He loves Under Armour clothes and the way they fit him snugly. The color was nice and the large logo always makes the shirt eye-catching. It is tag-less so that is a plus. I ordered him the YXXL, not because my 16 year old son is hefty but because the men's small I ordered (a different type of under Armour) was too big so I sent it back and ordered this one. I noticed that some people are not sure which sizes may work for their sons and neither was I. This one was perfect for my son who is about 5 ft 5, slender (an athlete) and weighs about 135 pounds; depending on which weight class he is wrestling at. When laid out under a Men's Medium size Aero shirt, they are approximately the same size (see image). He loves the shirt and it fits him really well.My sons love these UA shirts. Cool and comfy, look nice. If you follow the washing instructions, they was up well and last. To wash, turn the shirt inside out. Then wash in cool or warm water with NO fabric softener. Then put the shirt in the dryer (low heat, which is how I dry all our clothing) for 5 minutes or so -- again, WITHOUT a dryer sheet -- then remove from dryer and hang dry the rest of the way. The dryer creates enough moist heat to relax any wrinkles, but not enough to deteriorate the fabric.This shirt, by the way, is light heather gray (as pictured), with a bright lime & black striped logo outlined with white. Looks really cool. The image, at least to me, looks like a plain black logo.This review is specifically for the Fuel Green/Black shirt in Youth-Small. We have several of these shirts in different colors. For some reason, the quality/thickness of the Fuel Green fabric is lighter and thinner that the other shirts we own. Worried that UA had changed their quality standards, I compared this shirt to one in dark blue that came with the same order. Everything matches up: style number, size, even the Hecho en Honduras on the tag! But there's a definite difference in the fabric between the two shirts. So, I think it's the quality of the Fuel Green that's my concern (whew!). I'd be really disappointed if UA started skimping on the quality, and I would definitely stop purchasing their products.I guess we'll keep this one because my son loves the color, and I'll just keep my fingers crossed that the flimsy fabric holds up to normal wear and washings. I always wash these shirts inside-out, BTW, then pop them in the dryer (without a dryer sheet) for a few minutes before pulling them out to finish drying on a plastic hanger. They've always held up well to normal boy wear & tear...time will tell with this one.This shirt was a gift for my grandson. An unexpected bonus with this shirt is that the logo glows in the dark. My grandson is autistic. He had a particular fondness for an Under Armour shirt one year and wanted to wear it constantly. He would even take it out of the laundry hamper and put it back on when it was dirty. I attempted to find an identical shirt last year but was unable. I did find a similar one which he accepted. The original shirt finally wore out. These Under Armour shirts are well made and quite durable even though the fabric is very light weight. Would buy again.I ordered this for my son and he loves it. It can be so difficult to shop for kids in the store so I have found that it is easier to simply shop on Amazon for clothes. I was pleased that the shirt fit as expected and my son likes it because it is Under Armour brand and Under Armour is popular at his school. The prices on Amazon appear to be cheaper than in stores for brand products like Under Armour. I was happy to see all of the color choices too. The shirt fits my son comfortably; he wears it to school and to soccer practice as well.My 14 year old has been complaining that he needs new clothes as he has quickly outgrown most of his pants and shirts. I ordered the YL and it fits him perfectly, the sleeves and overall length are true to size. The material is very soft and silky and the color is very vibrant. He loves the material and that it does not make him too hot. He wears this as a normal T-shirt but it would work well for gym class or sport practices as well.Sizing chart:XS (7)SM (8)MD (10-12)LG (14-16)XL (18-20)I bought this for $14 and think that is a great price for Under Armour, you cant beat the consistent quality.I purchased this for my 10 year old son to wear for tennis lessons this summer. Right away he loved this shirt. It is a very soft material that he really loves the feel of. It seemed like it was quite comfortable for him and breathed nicely during his lessons in 90 degree heat. The shirt is a bit smaller than a boy's size Large from Old Navy (which I feel run a bit large), but still fit him quite well even though he's technically a 'husky' size. The blue is also a very vibrant color and looked really nice on my son. I liked this shirt so much I bought him four others and he loves all of them. They are his preferred t-shirt for the summer.My tag and seam sensitive son, who suffers from eczema during the summer, absolutely LOVES this shirt and would wear it every day if he could!! At his age he could care less about the brand name but just loves how soft, comfortable and "breathable" this shirt is. Beyond the fact that it looks great it has held up nicely after countless days worn and just as many trips through the laundry cycle. I'm not usually a fan of spending extra for something as basic as a shirt (especially one my son will quickly outgrow) but this is one purchase that was worth skipping the Target brand shirts for.My kids love Under Armour however the description of sizing for this garment is not very clear from this selling category. It. It did not really say if this was for a junior youth or adult.. I took the risk and ordered medium anyway.. This was fine but a little too big for my 12 year old son but as its loose fit it's not really a big problem. The garment washes well and dries very quickly and no ironing required which is also an added bonus. Quite compact when folded away so won't take up much room in a gym bag or luggage either.This was on special offer, a great purchase for my athletic son.. He had a competition Sheffield, so wanted something special. Great colour and fit.Great quality product as expected from this manufacturer. It has that usual feel of a rather strange fabric that Under Armour use and slight elasticated feel. My son loves the top.Looks great on my son Under Armour clothing is superb.Brilliant quality ordered lots more