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Bad Luck

Bad Luck brings Halloween mischief to your underwear drawer with skulls, ghosts, black cats and glow-in-the-dark details. Explore men’s and women’s styles, boys’ trunks and girls’ shorties in orange-accented BottleBlend® Performance or purple-accented TENCEL™ Luxe.

Skulls, Ghosts and a Little Bad Luck

Skulls, ghosts, black cats, bats and broken hearts bring Halloween mischief to Bad Luck. Playing cards, dice, eight balls and crescent moons add a playful nod to luck and superstition.

The all-over print pairs a black base with orange accents in BottleBlend® Performance and purple accents in TENCEL™ Luxe. Selected elements glow in the dark for an extra after-dark twist.

Choose Your Style, Pick Your Fabric

Bad Luck includes men’s trunks and long leg trunks, women’s G-strings, bikinis, shorties and bralettes, boys’ trunks and girls’ shorties. Each style is available in BottleBlend® Performance and TENCEL™ Luxe.

Choose BottleBlend® Performance for everyday performance comfort, or TENCEL™ Luxe made with soft TENCEL™ Modal. See each product page for current sizes, fit and material details.

FAQs

What is the Bad Luck underwear design?

Bad Luck is a Halloween-inspired print featuring skulls, ghosts, black cats, bats, playing cards and other symbols of luck and superstition. Performance styles have orange accents, while TENCEL™ Luxe styles have purple accents.

Does Bad Luck underwear glow in the dark?

Yes. Bad Luck has glow-in-the-dark elements within the artwork. The glow effect applies to selected design details.

Which Bad Luck styles are available?

The range includes men’s trunks and long leg trunks, women’s G-strings, bikinis, shorties and bralettes, boys’ trunks and girls’ shorties. Browse the products above for available sizes in each style.

What fabrics are available in Bad Luck?

Bad Luck is available in BottleBlend® Performance and TENCEL™ Luxe. BottleBlend® is made with recycled plastic bottles, while TENCEL™ Luxe uses TENCEL™ Modal fibres. See each product page for full fabric and care information.

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© KNOBBY AU 2026

At Knobby, we’re proud to work on the Country of the Kabi Kabi (Gubbi Gubbi) People in Chevallum. We honour their deep connection to this land, its waters and community, and pay our respects to Elders past, present and emerging.