Form fitting without being super hero tight.
Because of that I can wear this for casual as well as outdoor use. Can't say that about all my wool t-shirts.

I'm 6'4", 215lbs and the XL is perfect.

First I have to say it's nice TNF recognizes that just because you're 6'4" you don't necessarily have a 44" waist.

This shirt reflects that and I can't thank them enough (some of their shirts in the past have been, shall we say, voluminous around the waist area).

Pros
- fitted shirt that is made for trimmer people, huge plus in my book
- nice arm length in XL size (used to have get XXL to get long enough sleeves)
- nice light shirt that is also warm
- because it's so light I often take this shirt with me "just in case"
- nice collar that stands up with no hassles
- hemmed at a nice length

Cons
- the colors are a bit drab, saw the dark blue in the store and was underwhelmed, the lighter blue is also a bit dull, I have older versions in red, bright blue and black that after many washings are more vibrant than my new ones

- tiny bit tight across the shoulders when I cross my arms (why not get the XXL? because the XL fits perfectly other than that)

- the fleece is light but not as dense as past TKA 100 versions nor as dense as the Patagonia Micro D-luxe. I will probably not take this to the BWCA for a week as my one and only fleece.

Despite the cons I still gave it 5 stars because the pros far outweigh the cons and I almost live in this shirt.

I'm 6'4" and 215 lbs and I buy the XL.

I have wool shirts like this from all the famous makers (I'm kind of a wool junkie).

They all make very nice garments but this one is the best of the bunch.

Tight, fine weave that got the attention of this "fabric know-nothing" when I first saw it.
Almost a hard finish to it (definitely not fuzzy).
Gives you a polished look while being remarkably warm too.

XL fit is perfect for me at 6'4" and 215 lbs.
Form fitting but not too tight anywhere.
When I put it on it disappears and I forget I have it on. Can't say the same for all my cold weather gear.

Sleeve length is perfect with no exposed forearm when I lift my arms up.

No clue about durability but it looks like fabric that will last a long time.

No strange smells either.

Wish I had gotten my hands on these long ago.

I really like the TNF TKA 100 Microvelour Glacier but I like this better.

Pros
- light but dense fleece
- keeps me plenty warm in my 60 degree basement
- paired it with my Marmot Ledville on a 20 degree hike today and was comfortable the entire time
- collar stands up and is not too high
- arm length is perfect (for me)
- nice room in the shoulder area, can cross my arms with no stretching of fabric
- rich color, does not look washed out
- somewhat fitted, at first I was disappointed it was not as fitted as the TKA 100 but now I really am pleased with this cut

Cons (real minor stuff here)
- could cut off two inches from the hem but that is a pet peeve of mine, I don't like long shirts
- really wish they had the dark blue color pictured but not offered

I'm 6'4" and 215 lbs, athletic and the XL fits me great.