Me: 71"/250lbs, 18" neck, well padded athletic body. Usually wear XL tops. Ordered the XL, too tight, exchanged for the XXL, still a bit too tight. Returned. Fabric was indeed brick red. Perfectly described as "silk-weight", very smooth and stretchy, identical hand to silkweight poly. Smoother knit and lighter weight than Icebreaker SuperFineUltraLite. Probably would have been a perfect all-season base layer and workout shirt. No itch and I have sensative skin. Liked the mock V-neck, did not like the logo. Some small inconsistancies in the sewing. With the sale price it seemed a very good value. Try it, if you're slimmer than I you may love it.