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Size XL Underwear heart-wings

Browse our great range of XL women's underwear for curvy bums sized 18-20.

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Colour
Size
Brief Shapes
Dahlia Lace Full Brief - AlmondDahlia Lace Full Brief - Almond
Dahlia Lace Full Brief - Almond Sale price$19.00
(18)
SalePrint Full Brief - GelatoPrint Full Brief - Gelato
Print Full Brief - Gelato Sale price$15.00 Regular price$19.00
(8)
SaleNightingale Lace Full Brief - Lime SplashNightingale Lace Full Brief - Lime Splash
Nightingale Lace Full Brief - Lime Splash Sale price$15.00 Regular price$19.00
(9)
SaleAlyssum Lace Full Brief - LagoonAlyssum Lace Full Brief - Lagoon
Alyssum Lace Full Brief - Lagoon Sale price$15.00 Regular price$19.00
(12)
Lily Lace Midi Brief - WhiteLily Lace Midi Brief - White
Lily Lace Midi Brief - White Sale price$19.00
(4)
SalePrint Full Brief - FloraPrint Full Brief - Flora
Print Full Brief - Flora Sale price$15.00 Regular price$19.00
(11)
Peony Midi Brief - Savvy RedPeony Midi Brief - Savvy Red
Peony Midi Brief - Savvy Red Sale price$19.00
(3)
SaleBaroque Lace Full Brief - Briar RoseBaroque Lace Full Brief - Briar Rose
Baroque Lace Full Brief - Briar Rose Sale price$15.00 Regular price$19.00
(4)
SaleGeo Lace Full Brief - SorbetGeo Lace Full Brief - Sorbet
Geo Lace Full Brief - Sorbet Sale price$15.00 Regular price$19.00
(12)
Dahlia Lace Full Brief - Snow WhiteDahlia Lace Full Brief - Snow White
Dahlia Lace Full Brief - Snow White Sale price$19.00
(9)
SalePrint Full Brief - Graphic FloralPrint Full Brief - Graphic Floral
Print Full Brief - Graphic Floral Sale price$15.00 Regular price$19.00
(12)
Lily Lace Bum Bikini Brief - Ruby RedLily Lace Bum Bikini Brief - Ruby Red
Lily Lace Bum Bikini Brief - Ruby Red Sale price$19.00
(2)
SaleModel wearing Spot Mesh Midi Brief - Sugar BackSpot Mesh Midi Brief - Sugar Product Image
Spot Mesh Midi Brief - Sugar Pink Sale price$10.00 Regular price$19.00
(9)
SaleContrast Lace Midi Short - Macaroon Product Image
Contrast Lace Full Brief - Macaroon Sale price$15.00 Regular price$19.00
(11)
Nightingale Lace Full Brief - NavyNightingale Lace Full Brief - Navy
Nightingale Lace Full Brief - Navy Sale price$19.00
(3)
SaleSpot Mesh Midi Brief - Aqua BlueModel wearing Spot Mesh Midi Brief - Aqua Front
Spot Mesh Midi Brief - Aqua Blue Sale price$10.00 Regular price$19.00
(6)
Lily Lace Midi Brief - BlackLily Lace Midi Brief - Black
Lily Lace Midi Brief - Black Sale price$19.00
(5)
SaleLily Lace Bum Bikini Brief - WhiteLily Lace Bum Bikini Brief - White
Lily Lace Bum Bikini Brief - White Sale price$15.00 Regular price$19.00
(2)
SaleModel wearing Sweetpea Lace Bum Bikini Brief - Sugar Pink SideSweetpea Lace Bum Bikini Brief - Sugar Pink Product Image
Sweetpea Lace Bum Bikini Brief - Sugar Pink Sale price$15.00 Regular price$19.00
(6)
Print Full Brief - Navy FleurPrint Full Brief - Navy Fleur
Print Full Brief - Navy Fleur Sale price$19.00
(9)
SalePeony Lace Full Brief - Storm CloudPeony Lace Full Brief - Storm Cloud
Peony Lace Full Brief - Storm Cloud Sale price$15.00 Regular price$19.00
(8)
SaleBella Rosa Lace Midi Brief - Salsa OrangeBella Rosa Lace Midi Brief - Salsa Orange
Bella Rosa Lace Midi Brief - Salsa Orange Sale price$15.00 Regular price$19.00
(9)
SaleSignature Print Lace Bum Bikini Brief - Grey Pewter RoseSignature Print Lace Bum Bikini Brief - Grey Pewter Rose
Signature Print Lace Bum Bikini Brief - Grey Pewter Rose Sale price$15.00 Regular price$19.00
(2)
Lily Lace Midi Brief - Blush PinkLily Lace Midi Brief - Blush Pink
Lily Lace Midi Brief - Blush Pink Sale price$19.00
(4)
SaleNightingale Lace Midi Short - Ice Flow Product ImageNightingale Lace Full Brief - Ice Flow Blue
Nightingale Lace Full Brief - Ice Flow Blue Sale price$15.00 Regular price$19.00
(7)
SaleLace Bum Bikini Brief - Café Latte Product Image
Lace Bum Bikini Brief - Café Latte Sale price$15.00 Regular price$19.00
(2)
Lace Midi Brief - Almond
Lace Midi Brief - Almond Sale price$19.00
(10)
SaleLace Bum Bikini Brief - Black Product ImageLace Bum Bikini Brief - Black Detail Image
Lace Bum Bikini Brief - Black Sale price$15.00 Regular price$19.00
(15)
Model wearing Cotton Control Brief Midi Short - Navy BackModel wearing Cotton Control Brief Midi Short - Navy Front
Cotton Control Full Brief - Navy Blue Sale price$29.00
(7)
Willow Lace Full Brief - BlackWillow Lace Full Brief - Black
Willow Lace Full Brief - Black Sale price$19.00
(10)
Radiate Lace Midi Brief - Navy BerryRadiate Lace Midi Brief - Navy Berry
Radiate Lace Midi Brief - Navy Berry Sale price$19.00
(3)
Cotton Control Brief Midi Short - Almond FrontCotton Control Brief Midi Short - Almond Back
Cotton Control Full Brief - Almond Sale price$29.00
(6)
SaleAlyssum Lace Full Brief - Blue GraphiteAlyssum Lace Full Brief - Blue Graphite
Alyssum Lace Full Brief - Blue Graphite Sale price$15.00 Regular price$19.00
(7)
SaleLace Bum Bikini Brief - Cottage GardenLace Bum Bikini Brief - Cottage Garden
Lace Bum Bikini Brief - Cottage Garden Sale price$15.00 Regular price$19.00
(4)
SaleLace Bum Bikini Brief - Navy FleurLace Bum Bikini Brief - Navy Fleur
Lace Bum Bikini Brief - Navy Fleur Sale price$15.00 Regular price$19.00
(2)
Peony Lace Full Brief - Cafe LattePeony Lace Full Brief - Cafe Latte
Peony Lace Full Brief - Cafe Latte Sale price$19.00
(4)
SaleLace Bum Bikini Brief - Blooming RosesLace Bum Bikini Brief - Blooming Roses
Lace Bum Bikini Brief - Blooming Roses Sale price$15.00 Regular price$19.00
(2)
SalePeony Lace Bum Bikini Brief - Black Heavenly PinkPeony Lace Bum Bikini Brief - Black Heavenly Pink
Peony Lace Bum Bikini Brief - Black Heavenly Pink Sale price$15.00 Regular price$19.00
(1)
SaleLace Bum Bikini Brief - Violet Product Image
Sweetpea Lace Bum Bikini Brief - Violet Sale price$15.00 Regular price$19.00
(8)
SaleBella Rosa Lace Bum Bikini Brief - Salsa OrangeBella Rosa Lace Bum Bikini Brief - Salsa Orange
Bella Rosa Lace Bum Bikini Brief - Salsa Orange Sale price$15.00 Regular price$19.00
(4)
SalePrint Midi Brief - Graphic FloralPrint Midi Brief - Graphic Floral
Print Midi Brief - Graphic Floral Sale price$15.00 Regular price$19.00
(3)
SalePeony Lace Bum Bikini Brief - Savvy RedPeony Lace Bum Bikini Brief - Savvy Red
Peony Lace Bum Bikini Brief - Savvy Red Sale price$15.00 Regular price$19.00
(2)
SaleLace Bum Bikini Brief - Lipstick Product ImageSweetpea Lace Bum Bikini Brief - Lipstick Red
Sweetpea Lace Bum Bikini Brief - Lipstick Red Sale price$15.00 Regular price$19.00
(2)
SaleAlyssum Lace Bum Bikini Brief - LagoonAlyssum Lace Bum Bikini Brief - Lagoon
Alyssum Lace Bum Bikini Brief - Lagoon Sale price$15.00 Regular price$19.00
(3)
Midi Short - Denim Product Image
Full Brief - Denim Blue Sale price$19.00
(6)
Geo Lace Full Brief - MochaGeo Lace Full Brief - Mocha
Geo Lace Full Brief - Mocha Sale price$19.00
Lily Lace Bum Bikini Brief - BlackLily Lace Bum Bikini Brief - Black
Lily Lace Bum Bikini Brief - Black Sale price$19.00
(1)
SaleAlyssum Lace Bum Bikini Brief - Blue GraphiteAlyssum Lace Bum Bikini Brief - Blue Graphite
Alyssum Lace Bum Bikini Brief - Blue Graphite Sale price$15.00 Regular price$19.00

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on any domestic order $125 and above.

30 Day Returns

Available on most bra products, see our returns policy for more info.

XL Briefs That Fit Beautifully and Feel Even Better

If you’ve ever been told that your size means fewer choices, we’re here to tell you it’s time to stop compromising. Our XL women’s underwear come in the same flattering styles and comfortable fabrics as the rest of our range, because great knickers shouldn’t stop at a certain size.

Need help finding the right fit? Our knicker size guide is a good place to start.

 

Women’s Xtra Large Undies Should Support, Not Squeeze

Sick of wasting your valuable time searching for quality XL briefs in Australia? Ours are thoughtfully designed with real bodies in mind - no scratchy seams, awkward cuts, or settling for “close enough.” Just genuinely supportive, ultra-comfortable women’s underwear that works with your curves.

All our styles are available in women’s XL (though fair warning, some do sell out fast). Want all-over comfort? Try our Full Briefs. After a little shaping support? Our Cotton Control Briefs are always a favourite. Prefer a barely-there feel? Head to our XL G-Strings.

And if you’re after a full set, take a peek at our bras for the perfect match.

 

Why Australian Women Love Rose & Thorne XL Knickers

  • Made to fit, not just scaled up. Our XL briefs are designed from the ground up for size 18–20 bodies, with cuts that support and flatter in all the right ways.

  • Style without compromise. Every fabric, colour, and cut you love is available in XL too, because great underwear shouldn’t stop at a certain size.

  • All-day comfort, built in. Soft, secure, and thoughtfully shaped, these are knickers that stay in place and feel good from morning to night.

  • Designed to feel like you. No sagging. No squeezing. And definitely no grandma energy, just underwear that work as hard as you do.

You know what feels good. You know what works. Now you just need more of it in your drawer. We’re ready when you are.