Awesome shirt and by far my new favorite base layer, went with a large based on a recommendation from first lite customer service but it’s a little bit too big, will save it to use over some other baselayers after I buy some mediums and try those out.

After trying brands like Under Armour, Cabelas E.C.W.C.S., and several other name brand thermals, I am completely sold on the FL Kiln top! Nothing is as soft, warm, and just flat out as comfortable as this top. Other tight-fitting thermals like UA always seems to get uncomfortable (for me, in the armpits) after long days. The Kiln top never gets uncomfortable and actually makes my days in the field more enjoyable. As a plus, it dries very quickly and odor is incredibly suppressed after a few days of use in the field.

I am wearing this shirt as I write this review. It is just so comfortable. I wore this as a base layer for a bow hunt yesterday under the Furnace Henley and a jacket and was perfectly comfortable all morning in the stand. I also bought the Kiln Hoody to pair up on those mornings it's too cold to have one layer.

Bought this top for whitetail hunting in Tennessee and can’t express enough how this product works. Feels great next to skin, keeps sweat pulled off your body from the walk in and keeps you warm. This is the first first lite product I’ve bought and will continue to purchase from them. No more UA for me. Would recommend to anyone.

Great piece of gear. Warm, breathable, good stretch, well made. The thumb holes were great for overlap with my gloves.I will be buying at least 1 more of these. I brought 3 hunting shirts on a 7 day hunt and never used a different one than this one, only changing my under tee shirt.This is tied with the Klamath hoodie as my new favorite gear piece.