<size chart> A Relwen polo is one of the most detailed garments of its kind. Our collar is a two-piece pattern with a separate collar band shaped like a smile to ensure it properly frames the neck. The placket opening utilizes horizontally cut buttonholes and slot-holed buttons strung to folded woven tape. This method of affixing buttons was historically reserved for military garments but seems as worthy here. Construction like this is nearly indestructible while also allowing buttons to slide to a point of stress, should any occur. Finally, our new lightweight cotton pique body fabric w/ 5% stretch…say hello to spring! fit: classic content: 95% cotton, 5% spandex knit pique, lightweight 215 gsm 3-button placket opening utilizing double layer woven tape strung thru slot hole buttons, each position framed w/ 2 bartacks for lasting durability horizontal cut buttonholes smile shaped shirt collarband for closer tapered fit split-tail side seams, +3/4" longer at back care: machine wash cold, no bleach, air dry or tumble low imported