Carhartt Men's Irvine Tough C Graphic Relaxed Fit Pocket Long Sleeve T-Shirt

How does the relaxed fit run on this long sleeve t-shirt?

Cut with room through the chest and shoulders so reaching and bending don't pull it tight. Size down if you want it closer to the body.

Is it warm enough for cold weather?

At 5 ounces it's lightweight — this is a year-round shirt that works on its own in mild weather and layers under a flannel or hoodie when it's cold, rather than a heavyweight thermal.