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greenhearts Size XL Underwear

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

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Colour
Size
Brief Shapes
Availability
Willow Lace Midi Brief - BeaujolaisWillow Lace Midi Brief - Beaujolais
Willow Lace Midi Brief - LatteWillow Lace Midi Brief - Latte
Willow Lace Full Brief - LatteWillow Lace Full Brief - Latte
Willow Lace Midi Brief - WhiteWillow Lace Midi Brief - White
Willow Lace Full Brief - WhiteWillow Lace Full Brief - White
Lily Lace Midi Brief - Terra CottaLily Lace Midi Brief - Terra Cotta
Lily Lace Bum Bikini Brief - Terra CottaLily Lace Bum Bikini Brief - Terra Cotta
Lily Lace Full Brief - Terra CottaLily Lace Full Brief - Terra Cotta
Lily Lace Midi Brief - NavyLily Lace Midi Brief - Navy
Lily Lace Bum Bikini Brief - NavyLily Lace Bum Bikini Brief - Navy
Lily Lace Full Brief - NavyLily Lace Full Brief - Navy
Lily Lace Bum Bikini Brief - Blush PinkLily Lace Bum Bikini Brief - Blush Pink
Lily Lace Full Brief - Blush PinkLily Lace Full Brief - Blush Pink
Lily Lace Full Brief - BlackLily Lace Full Brief - Black
Radiate Lace Midi Brief - Blush BlackRadiate Lace Midi Brief - Blush Black
Peony Lace Full Brief - Purple WineberryPeony Lace Full Brief - Purple Wineberry
(3)
Peony Lace Midi Brief - Purple WineberryPeony Lace Midi Brief - Purple Wineberry
(3)
Peony Lace Full Brief - Savvy RedPeony Lace Full Brief - Savvy Red
(1)
Willow Lace Full Brief - BeaujolaisWillow Lace Full Brief - Beaujolais
(3)
Bikini Brief - BeaujolaisBikini Brief - Beaujolais
Bikini Brief - Beaujolais Sale price$19.00
Geo Lace Midi Brief - MochaGeo Lace Midi Brief - Mocha
Geo Lace Full Brief - MochaGeo Lace Full Brief - Mocha
(1)
G-String - MochaG-String - Mocha
G-String - Mocha Sale price$19.00
Bikini Brief - MochaBikini Brief - Mocha
Bikini Brief - Mocha Sale price$19.00
Bikini Brief - WhiteBikini Brief - White
Bikini Brief - White Sale price$19.00
Lily Lace Full Brief - WhiteLily Lace Full Brief - White
(2)
Willow Lace Midi Brief - BlackWillow Lace Midi Brief - Black
(2)
Bikini Brief - BlackBikini Brief - Black
Bikini Brief - Black Sale price$19.00
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)
Nightingale Lace Full Brief - NavyNightingale Lace Full Brief - Navy
(6)
Nightingale Lace Bum Bikini Brief - NavyNightingale Lace Bum Bikini Brief - Navy
Bikini Brief - NavyBikini Brief - Navy
Bikini Brief - Navy Sale price$19.00
(2)
Peony Lace Full Brief - Cafe LattePeony Lace Full Brief - Cafe Latte
(4)
Peony Lace Midi Brief - Cafe LattePeony Lace Midi Brief - Cafe Latte
Bikini Brief - Cafe LatteBikini Brief - Cafe Latte
Bikini Brief - Cafe Latte Sale price$19.00
G-String - Cafe LatteG-String - Cafe Latte
G-String - Cafe Latte Sale price$19.00
G-String- BlackG-String- Black
G-String- Black Sale price$19.00
Lily Lace Bum Bikini Brief - BlackLily Lace Bum Bikini Brief - Black
(1)
Lily Lace Midi Brief - BlackLily Lace Midi Brief - Black
(6)
G-String - Blush PinkG-String - Blush Pink
G-String - Blush Pink Sale price$19.00
Bikini Brief - Blush PinkBikini Brief - Blush Pink
Bikini Brief - Blush Pink Sale price$19.00
(3)
Lily Lace Midi Brief - Blush PinkLily Lace Midi Brief - Blush Pink
(5)
Radiate Lace Midi Brief - Navy BerryRadiate Lace Midi Brief - Navy Berry
G-String - NavyG-String - Navy
G-String - Navy Sale price$19.00
Peony Midi Brief - Savvy RedPeony Midi Brief - Savvy Red
(4)
Peony Lace Bum Bikini Brief - Savvy RedPeony Lace Bum Bikini Brief - Savvy Red
(2)
Lily Lace Midi Brief - WhiteLily Lace Midi Brief - White
(4)
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)
SaleLace Bum Bikini Brief - GelatoLace Bum Bikini Brief - Gelato
Lace Bum Bikini Brief - Gelato Sale price$15.00 Regular price$19.00
(2)
SalePrint Full Brief - GelatoPrint Full Brief - Gelato
Print Full Brief - Gelato Sale price$15.00 Regular price$19.00
(10)
SaleGeo Lace Full Brief - SorbetGeo Lace Full Brief - Sorbet
Geo Lace Full Brief - Sorbet Sale price$15.00 Regular price$19.00
(13)
SalePrint Full Brief - FloraPrint Full Brief - Flora
Print Full Brief - Flora Sale price$15.00 Regular price$19.00
(13)
SaleLace Bum Bikini Brief - FloraLace Bum Bikini Brief - Flora
Lace Bum Bikini Brief - Flora Sale price$15.00 Regular price$19.00
(1)
SaleAlyssum Lace Full Brief - LagoonAlyssum Lace Full Brief - Lagoon
Alyssum Lace Full Brief - Lagoon Sale price$15.00 Regular price$19.00
(15)
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)
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)
Dahlia Lace Full Brief - Snow WhiteDahlia Lace Full Brief - Snow White
(9)
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)
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
(10)
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
(11)
SalePeony Lace Bum Bikini Brief - Storm CloudPeony Lace Bum Bikini Brief - Storm Cloud
Peony Lace Bum Bikini Brief - Storm Cloud Sale price$15.00 Regular price$19.00
(1)
SalePrint Midi Brief - Graphic FloralPrint Midi Brief - Graphic Floral
Print Midi Brief - Graphic Floral Sale price$15.00 Regular price$19.00
(4)
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)
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
(5)
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)
Midi Short - Ivory Spot Product Image
Full Brief - Ivory Spot Sale price$19.00
Midi Short - Denim Product Image
Full Brief - Denim Blue Sale price$19.00
(6)
SaleLace Bum Bikini Brief - WisteriaLace Bum Bikini Brief - Wisteria
Lace Bum Bikini Brief - Wisteria Sale price$15.00 Regular price$19.00
(1)
SaleLace Bum Bikini Brief - Garden PartyLace Bum Bikini Brief - Garden Party
Lace Bum Bikini Brief - Garden Party Sale price$15.00 Regular price$19.00
(3)
SaleRibbons Bikini Brief - Foxglove PinkModel wearing Ribbons Bikini Brief - Foxglove Back
Ribbons Bikini Brief - Foxglove Pink Sale price$10.00 Regular price$19.00
(6)
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)
SaleLace Bum Bikini Brief - Bubbles Product ImageLace Bum Bikini Brief - Bubbles
Lace Bum Bikini Brief - Bubbles Sale price$10.00 Regular price$19.00
(3)
Cotton Control Brief Midi Short - Almond FrontCotton Control Brief Midi Short - Almond Back
(6)
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)
SaleQueen of the Nile Lace Bum Bikini Brief - Ebony BlackQueen of the Nile Lace Bum Bikini Brief - Ebony Black
Queen of the Nile Lace Bum Bikini Brief - Ebony Black Sale price$15.00 Regular price$19.00
(1)
SaleQueen of the Nile Lace Bum Bikini Brief - LipstickQueen of the Nile Lace Bum Bikini Brief - Lipstick
Queen of the Nile Lace Bum Bikini Brief - Lipstick Sale price$15.00 Regular price$19.00
(1)
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)
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)
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
SaleAlyssum Lace Bum Bikini Brief - Midnight SunAlyssum Lace Bum Bikini Brief - Midnight Sun
Alyssum Lace Bum Bikini Brief - Midnight Sun Sale price$15.00 Regular price$19.00
(2)

Free delivery

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.