I like them a lot or similar type products. Only have one Under Armour brand. Wife goes to the thrift store and bring the stuff home. It really helps keep you warm. I have started wearing it to work when it's extra cold. The fact that it wicks away and drys quickly is a big bonus as I tend to be a sweat hog when it's warm. In warm weather I use the boxer briefs so it's not so clammy when I stop sweating. She got me a Merino wool under shirt, at the thrift store, and it was excellent too. She has a green light on any others she finds. I don't care for the tight fitting, skin tight, UA shirts. I find them uncomfortable, plus they accentuates my spare tire. Not a fashion item for me, but practicality as they work. Love em. Will never go back to cotton.