Extremely nice wool. Warm and incredibly soft. I gave 4 stars because it has a boxier cut than my other FL gear. The waste on the seem to flare a bit more than others. Even still, its one of my favorite pieces of gear. Extremely versatile for anything below 35.

Bought the quarter zip and long John in October in preparation for November deer season. The temperatures were below zero every day I was out, but I was very warm with this as my base. I have never been warmer than I have been this year. Perfect for cold November sits in Alberta.Perfect fit for me, not too baggy and not too tight. Moves well with your body and no seams sitting in any unpleasant areas. The thumb holes in the sleeves are great for keeping them from bunching under other layers and provide a little extra warmth on your hands. Very soft comfortable merino fabric. Well done First Lite.

Great shirt. Good layering piece for cold weather deer stand hunts. Will be using even more for late season bow hunting in Minnesota (its cold here in December). I layered 2 other midweight FL shirts underneath and had this before my jacket and bibs during rifle season in the mid teens to low 20s and was perfect. Its surprisingly thick. The interior is really soft. I dont usually like 1/4 zips, but this piece is comfortable and zippers dont get in the way.

I used the both the top and bottom Furnace as a second layer during archery this fall. I love the stretch they have for ease of movement, I never felt restricted while drawing my bow, hiking in or using my climbing sticks. They provided enough warmth with my lightweight early season gear into the lower 50's during long sits in the stand.

Love this layer. The name furnace defiantly holds true, not sure if i could get cold with this on. This piece under the grid fleece with a wind breaker is awesome. I have sat in single digit temps snug as a bug with that set up.