The best replacement for underwear is boxers.

The best alternatives to underwear are rated as following:
★★★★★  boxers
★★★  draws
★★★  commando
★★★  pull ups
★★★  training pants
★★  diapers
★★  baguettes sims 2
★★  bikini
★  thong
★  panties
★  underwear
★  thongs
★  panty
  briefs
  compression shorts
  pajamas
  under armour
  long johns
  wool long underwear
  tights

Your alternative for underwear is not listed? Suggest!
Speaking about underwear, one probably shouldn't forget about board shorts.

Other search terms related to underwear and their ratings are:
★★★★★ board shorts
★★★★★ yoga pants
★★★★ running tights
★★★ leggings
★★★ running shorts
★★ spandex
★★ leotard
★ kilts
★ bike shorts
photo
You have in mind a companion for underwear and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of underwear in all years. Click on graph for more.
underwear
boxers
draws