I remember well when I was but a child of tender years  The day that I discovered the catalog from Sears  The people in the pictures they made me stop and stare  Who'd have guessed that they'd be dressed in thermal underwear?  Underwear! Long underwear!  It makes the foulest weather feel like fair!  It's ten below and icy winds blow whistling through the air  Let it storm, I'm toasty warm inside my underwear.  Prudence says to set our thermostats at sixty-five  In skimpy briefs and brassieres you will not survive  The Lord in all her wisdom gave us more than skin and hair  She gave us wit, ourselves to fit with thermal underwear.  Underwear! Long underwear!  Beneath our clothes, without it we are bare  Plutonium is perilous and coal pollutes the air  The energy source that's best, of course, is thermal underwear.  Paul Newman wears it all the time and Redford he does, too  Barbra Streisand swears that it's the only thing to do  Lovers, if you think that taking off your clothes is nice  Do not miss the greater bliss of taking them off twice!  Underwear! Long underwear!  Slip inside and leave behind your cares  The oil and gas kingpins will rant and tear their hair  Who needs them? We've got a friend in thermal underwear.