Review on Discover the Ultimate Performance Baselayer: BALEAF Boys' Youth Compression Shirts - Long Sleeve Undershirts by Lokesh Das

The overall length and width of a size M is what I would expect for this size, which is somewhere between Under Armor's S and M sizes. However, the problem lies in the armholes. They're cut so high! It's like the armhole area was made for a 5-6 year old but the rest of the shirt is designed for an average 9 year old. I'm not the only one complaining about this. I previously bought an XS for my just turned 5 year old and it fit well so I bought it for my 8 year old. Can't wait to get it back as he says it doesn't cause any discomfort although the top half of the shirt is wrinkled in an odd way. He'll just wear it under his shirt so nobody sees him anyway. I think they just took the XS and made the sleeves and body length longer but forgot to adjust the height of the neck to match the forearms.