MyFishFinder.com Just like iceshanty but warmer
I've found that it you don't really need to spend much money on long underwear.
I like a lot of Helly Hanson gear including their long underwear. Its the only higher end long johns I wear, no need to buy, or moreso "try" any of the other expensive stuff, I'm happy with them. I also wear the cheaper traditional cotton stuff too occasionally on warmer days.
I have used Duo-Fold since long before under armor was around and have nothing but good to say about it. It costs less than half what under armor costs. I bought under armor for my 9yr old son last year and he says it works great but he is young and has nothing to compare it to. I would like to try Under Armor but for the money I know Duo-Fold works.
DOES THE COLD GEAR FIT TIGHT, DON'T LIKE TIGHT
Patagonia Capilene if you don't mind the cost. The call it their base layer and it comes in 4 weights from the lightest on up. capilene 2 is warm enough for me and very light weight. they also design the front with easy access in mind. I bought the bottoms and wish I had another pair to wear while one is in the wash that how much they get used.My view is that is better to go with a lightweight layer next to the skin and wear the warmer stuff over that.