This is a military shirt from the Korean brand FUNDLE. *No stretch. I only tried it on, and I've kept it stored since I bought it, so it doesn't have that brand-new, sparkling feel. It seemed small even when I tried it on, and my dog has grown, so it no longer fits. I'm hoping to sell it to a dog whose size it will fit. I believe the size chart reads as follows, from left to right: chest circumference, back length. Thank you for your consideration. Images 4 and 5 are of the actual item. Retail price: 4,800 yen Size: L