i work semi out side, driving trucks making local deliveries. which means in and out of the cab all day and working with hand trucks, floor jacks, and stacking and unstacking boxes. i purchased these because the normal two piece long johns tend to develop a gap at my lower back. these are soft and kind of warm, but not really all that warm. they are very comfortable thoe.

the union suite is two ply but both ply's are very very thin. i have t-shirts that are thicker cloth.  wile these are ok for October and November once January hits I'll have to go back to two piece long johns. i am very disappointed by this product, i had very high hopes for it. if the outer layer had been a little thicker or incorporated a little more wool then i believe they would live up to the hype.

i can see using this a foundation garment as one of multiple layers. but not as a replacement to normal inexpensive long johns. you know the white waffle kind that can be found in any store.

wile at work I've been wearing these, blue jeans, a flannel shirt and a coat. the only real benefit is that when i bend over a gap doesn't open at my lower back. which means i won't abandon them but will not rely on them by them selves either.

i currently live and work in new york city, the last few weeks have been in the mid 30's. not really that cold these should be able to hand it easily. regular long johns do. wearing these i haven't felt cold but i haven't felt warm either.