I am very impressed with the Klamath Top. I bought the top for a base layer, and it has not disappointed. While I have not been able to use it in the woods yet, I regularly use it when I am working outside the house or walking the dog in temperatures under 35 degrees, and was perfectly warm with just the top on. When used as a piece in a layered system, it is easy to see that this is a quality product.

I was slightly worried about the fit before purchasing, as I workout regularly and carry more mass through my shoulders and chest. The fit was perfect. There is plenty of give/stretch to account for this while also keeping an athletic fit over the rest of my torso.

This is a great piece that can be worn as an outer layer when it’s mild out. Or layered in with other things to get you through really cold days.

This was a let down for me. Too thin. And in my opinion just go with the Furnace. But go with what size shirt you wear. Bought a medium to small I wanted it for a second layer. Still a FL fan. And leave tags on if you want a refund. I had no problem returning it.

I've got several pieces of FL gear, and this is by far my favorite and most versatile layer. Really warm for its light, thin build. I run hot, so need to hike in as cold as I can stand it to not sweat. I'll wear the Klamatah with a wicking T Shirt underneath in temps in the low 20s and be shockingly comfortable. And it's so comfortable with the soft stretch fabric, I wear it around the house way too much. If I had any concerns (to make this review more trustworthy), I'm wondering how the stitched seams will hold up. I can see them starting to "fuzz" a bit in places where they rub on other layers. Really strong-looking stitch, so suspect I'm ok. I took a big gulp on the price before buying this as a guy who can't afford to miss...it's absolutely worth the price. Tucking some $ away to buy another one.

This is an awesome shirt. I wear it paired with the 250g quarter zip Kiln on cold mornings while still hunting and moving to and from my stand. No complaints and it fits great.