I am 6'2" 200lbs with an athletic build. Big chest and shoulders, long arms, and a narrower waist. The large is a spot on fit both in the top and the kiln bottoms. Just enough extra material to be comfortable and easy to move in, but not baggy at all. I usually run between and large and XL depending on manufacturer. I am fully confident ordering First Lite gear online now without trying it on. On a side note the customer service is first rate. I had several questions on their rain gear and they really are very knowledgeable about all their products!

This was my first FL purchase and I ordered the XL. I am 6' - 240 lbs with 38" waist. The fit was spot on. The shirt is not baggy nor constricting. The sleeves are a bit long, but not to the point of being annoying. Plenty of room there. The thumb holes were nice for the early morning hunts when I elected not to wear gloves.I wore this as a base layer and middle layer on my Eastern NC turkey hunt this past spring. The temps were in low 50's and 75 or so for the highs. The shirt kept me warm and comfortable for the early morning hunts, and worn alone in the afternoon and evening this was all I needed. The fit is perfect for me, and was non restricting. It's not a tight fitting shirt. It's just a good fitting shirt. Like others have said you won't want to take it off, it's that comfortable. I wore this for 3 days and did not have an issue with smell. On the last day I could tell it needed to be washed. If you are not sure about buying this shirt, I would say don't be. I was the same way and after reading all of the positive reviews pulled the trigger. I do not regret it one bit. The cost is a bit high, but worth it. I purchased one for my son, and will be buying more for the colder Illinois deer hunts.

Best fitting most comfortable and well thought out clothing I have ever worn

Worked awesome, works well with layers to keep you warm. I called in a turkey till it was 8 ft from me this morning; only reason I didn’t get him was because I was archery hunting and I wasn’t ready in time. I use the fusion and it’s definitely one of the best camouflage patterns for pine forests.

Performs better than any other mid-heavy wool base layer I've used. That said, for a first or second layer, it runs a bit large. In my experience, a base or mid layer should be somewhat tight, but the Kiln fits quite loose compared to others I have owned, and can bunch up a little bit. It still does it's job incredibly though, is super comfortable for the most part (the bunching doesn't seem to be an issue), and I can tell it will hold up to a lot of abuse.