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Seamless support for everyday wear

Browse our Underwear. BioFlex™ and GlowTint™ styles bring smooth support, flexible fits and barely-there comfort. Start with what feels good.

Seamless support for everyday wear

Natural fibres, refined through with comfort and responsibility held in

  1. We engineer fibre blends to balance breathability, moisture movement and temperature regulation.
  1. We consider material origin, waste inputs, durability and product life from the outset.

Start With What Feels Good

Nobody compliments your underwear. That’s rather the point. Paire underwear is built to be the layer you never think about — seamless where it counts, soft everywhere else, and engineered to stay exactly where you put it from morning meeting to last drinks.

Why Choose Paire Underwear?

  • Second-skin feel: our signature BioFlex™ fabric is buttery-soft and four-way stretch, so it moves with you instead of against you.
  • Genuinely invisible: ultra-seamless construction means no digging, no rolling and no VPL under leggings, linen or a fitted dress.
  • Skin-friendly by design: antibacterial, breathable fibres chosen for sensitive skin and long days.
  • Size-inclusive fits: from low-rise bikini to full brief, and wireless bras built for fuller busts as standard, not as an afterthought.

Shop Underwear Online Australia

Our women’s underwear range is organised by how it feels, not just how it looks:

  • BioFlex™ Ultra Seamless — seamless underwear in classic bikini, mid brief and full brief. The everyday workhorse, invisible under everything.
  • Lipstick Underwear™ — lightweight, antibacterial and compact enough to pack like a lipstick. G-string, bikini and full brief fits, in packs of 3 or 7.
  • BioTracker — full brief, mid brief and classic bikini options for those who want considered coverage.
  • Wireless bras — BioFlex™ t-shirt, cross-over lift and full-bust styles, plus GlowTint™ travel bras made for long-haul comfort.

Underwear That Disappears Under Clothes

Visible panty lines are a fabric problem, not a you problem. Our seamless styles are knitted rather than cut and sewn at the edges, so there’s no hem to press through your clothes. Pair them with leggings, tailored trousers, white linen or anything clingy and the only thing anyone notices is the outfit.

Fabric First

  • BioFlex™: soft, breathable and four-way stretch, with light compression that holds shape without squeezing.
  • RegSilk Protein™ Fibre: used in the Lipstick Underwear™ gusset for barely-there softness where it matters most.
  • Antibacterial and moisture-managing throughout — because fresh shouldn’t depend on a mid-day change.

How Often Should You Replace Underwear?

Most guidance lands on every six to twelve months for pairs in regular rotation, and the reason is mechanical rather than hygienic. The elastane in a waistband and leg elastic degrades with heat and stretch cycles — a hot wash or a tumble dryer ages it far faster than wearing it does — so a pair usually goes slack at the edges while the fabric itself still looks fine. That slackness is what causes riding up, rolling and visible lines. Two things extend the life of any pair considerably: cold washing, and drying flat or on a rack rather than in a dryer.

Paire’s Footnote on Comfort

We started with socks, which means we’ve spent years obsessing over the two things underwear also lives or dies on: fit at the edges, and fibre against skin. Everything in this collection is designed with the same test in mind — would you forget you were wearing it?

Buy Underwear Online & Join the Paire Community

Every Paire comes with our 100-day risk-free trial — wear it, wash it, and if it doesn’t feel right, return it for a full refund. Free shipping on orders over $99.

Start with the first layer. The rest of the outfit gets easier.