Tip: If you don't understand the size chart, please read this sentence carefully (Size XL generally is suitable for 143lb, each size is about 16lb difference). Of course, it is recommended to use the size chart as much as possible. HIGH QUALITY FABRIC: This shirts made from great fabric, lightweight, breathable and soft touch, do not shrink and fade, Moisture-wicking. CLOTHING MATCH: These long-sleeve stylish slim fit shirts could be easy to match with dress pants, slacks, chinos, and jeans. OCCASION: Perfect for spring, autumn and summer, fashion style, formal work, business wear, everyday casual wear, beach wear and etc.