Review on LAPASA Men's Ultra Heavyweight Thermal Underwear Set for Extreme Cold Weather – Long Johns Top & Bottom (Thermoflux Fusion M63) by David Gibbs

This is the heaviest base layer I own and I have had several sets over the years. A little tighter than I'm used to, but not uncomfortable or restrictive. We hunt from climbing trees at a grade F and they have held up well. This is of course multi-faceted. But I found my outer jacket hanging on a rack for hours before I felt chilled enough in the 20 degree weather to need it. Worth the money and not as expensive as UnderArmor. Maybe a little bulky for hiking/hiking, but for stationary activities they are amazing. I can't say anything about the durability yet, but it seems to be well made and shows no signs of wear at the moment.