Ok I know this is a very minor thing, and it might not qualify as a bug, but it bugs me to no end.
Both top and bottom long underwear are encumbrance 1, but the union suit is encumbrance 2. They offer the same coverage, the same warmth, the same lack of protection. Seems like union suits should be reduced to 1 as well, or at least given an increased warmth level or something to make them actually worth using by comparison.