I bought this to wear in the sun as I get sunburnt easily. I wanted something light and not too hot. This shirt works perfectly. I suspect it will also work well under sweaters and sweatshirts in cold weather. In terms of size, it fits me very well. I got XL. My normal shirt size is 17.5-18 neck and 34 sleeves. I'm 5'11", 225 pounds and long torso. This shirt is long enough to be tucked in or left out. It has a slightly straight cut. a little thinner but if you have a round center it may be a little tight.
Calvin Klein π Herringbone Sleeve Men's Dress Clothing
50 Review
Men'S Regular Fit Short-Sleeve Dress Shirts By Allsense - Look Stylish And Professional!
41 Review
Van Heusen Traveler Stretch Men's Shirt
47 Review
Men'S Long Sleeve Polo Shirt - Slim Fit, Stretchy, Breathable Collar
43 Review