TSLA Men's Mock Long-Sleeved T-Shirt Cool Dry Compression Baselayer Top, Athletic(mut12) - Neon Yellow, Medium.

Other reviews said to get one size larger. I purchased a large as opposed to a medium, and the mock neck "bacons" as opposed to fitting properly. There is no exchange policy, and to return the item would cost as much as it did to buy. Soooooo, get the size that actually fits, folks...you pay a premium to return it.

Husband loves these. He is 43 inch chest. I ordered XL. Fits perfect and he can also fit them down past his back and into his jeans to keep him warm. I ordered 2 to begin with. But upon receiving them I ordered 4 more of the tops last week. Initial order also I ordered the pants to match. He loves them too. So ordered another 2 matching pants last week. Also this is first time my husband has ever tried the tops and the pants. He is very impressed. He wears them out under his jeans and uses as second set as pyjamas on the really cold night. High quality also and the price you cannot beat. I looked at nearly every shirt and pant on amazon for a whole day and finally chose this brand. Very very pleased as is my husband.

I have to wear a black turtleneck under my security uniform and vest. I had a surprisingly hard time finding such shirts, until I found these. First off, definitely follow their directions, and order one size up. It fits a little tighter, and conforms to your body. But, it fits nicely and comfortable. The material it is made out of is not only cool, but it doesn't itch or scratch like some cotton shirts either. I would recommend this shirt.

I'm 6' and 225lbs and got the XL. It feels and looks good. It's not tight but just enough to give it the tight look with out stopping my blood from circulating if that make sense lol. Really like hoe the stitching looks in the shoulder down to the elbow. Also I got the all black but there is one thing might not be good for some. If you need a all black one this is sort not all black. The back of the neck is grey. My job went let me have anything but black bit since I use a polo it hides the grey part but that not the reason I'm giving it 4 out 5. The reason is because the neck feels a little lose to my liking and not tight like I have from other brands but other then that I really like them.

I normally wear a large tshirt so I bought XL so this wouldn't be tight (wanted form fitting but not tight). Even with upsizing by one I would consider this to fit like tights, a large would have been squeezing me. In the end I am happy but order up for sure.

I wear a lot of compression shirts for outdoor activities, thus end up shopping from multiple manufacturers looking for that quality/price balance. So with this shirt, although I like the cut and overall feel, it just fits a little too tight. I usually order size Lg from companies I know, and a size up from those I don't. I am glad I did as this XL fits like a tight Lg; so if I placed a second order I would consider going XXL to get the Lg fit I like.

Very pleased with this shirt. It's great quality. Fits well. Very comfortable.I work in a cold environment and use these shirts as a base layer. The shirt fits more snug than I expected, so I'm thankful that I ordered a size larger than my normal size for shirts.These shirts have a mock turtleneck, but it does not add noticeable extra warmth.Sizing. I would strongly recommend going with a size larger than normal. I cannot imagine how tight this would be had I gone with a size lower.I highly recommend these shirts, and I'm already considering buying again when needed.

This worked great for 104 degree weather in Moab Utah! I could definitely tell it kept me feeling cooler than my regular clothes. Just to help others size, im pretty skinny, 6'2" 170lbs, fit, and the large worked well, i definitely think a medium would have been too tight.