Duofold long underwear is made of two layer thermal that will keep one warm and comfortable. One part is mostly made of cotton, while the rest is made of polyester.
I've yet to try both, going with comments in the forthcoming URL to try only Duofold for my motorcycling experience, but this review of both Under Armour and a more bike-oriented brand does mention Duofold a couple times... also in at least one comment: http://www.webbikeworld.com/r3/motorcycle-underwear/windproof-underwear/ The short answer here is that some are of the opinion that Duofold is at least as good, and without paying for all the UA advertising...
Duofold clothing is geared towards those that need good insulation in their clothing because they go camping. They offer thermal underwear and outerwear for men and women.
Thermal underwear can come in handy on those super cold nights. You can purchase some from Amazon, Walmart, Target, Sears and Kohl's. If you are planning on camping in a cold area, a store like R.E.I. might have some for sale.
The answer is long underwear.
Long underwear is "långkalsonger", in Swedish.
longjohns are long underwear, therefore no, wear them on their own.
Underarmour is the best long underwear, they also sell long t shirts. REI and Jockey also sell good long underwear that is good for outdoor and athletic activity.
Santa wears long underwear because it keeps him warm.
You can buy long underwear and long thermal underwear from online stores such as Amazon. They offer a wide range of products at great prices. You could also use John Lewis and Marks and Spencer.
The name of the pen used by Rizal was a Parker Duofold.
Click on related links below for two sources of women's long leg cotton underwear
Long underwear is not sold at all clothing stores. One of the best places to check is a camping store like REI, which has long underwear all year round. During the winter these items can be found at Target or Macys.