If you are a long time reader of UNB, you know that the Billy brief at aussieBum has been a long time reader favorite. It’s always had the retro vibe by the way it’s cut and the cotton fabric. But, aussieBum has just updated the retro bikini with a some new material. The new line is called the Billy Flex Air.

Here are the new features:

  • Stretch Polyester Elastane Mesh Body
  • Contour Pouch
  • Elastic Waist Binding
  • Elastic Leg binding
  • Flatlock seam details
  • Low rise
  • Rubber aussieBum Flag
  • Quick drying
  • Side Seam Length M 7cm

Check out the new Billy Flex Air.

Pair: aussieBum Billy Flex Air
Color: Navy, Black, White, Red, Olive, and Blue
Fabric: 92% Polyester 8% Elastane
Sizes: Small – X-Large
Price: $15.00


Tim is the founder and editor of Underwear News Briefs. He has been an avid underwear fan since the age of 14! He founded UNB in 2008 and has continued to broaden his underwear love over the years

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