Filtrer by
Briefs Narcisse
Briefs Agathe
Medium briefs Carla
Tanga Arum
Medium Briefs - Pack of 3 Simplement Coton B
Pack of 3 cotton thongs Subtile
Medium briefs Arum
Briefs Sabrina
Medium Briefs Arum
Shorts Amélie Print
Medium briefs Arum
Briefs Amélie
Briefs Agathe
Medium briefs Suzan
Tanga Alberta
Medium Briefs - Pack of 3 Simplement Coton B
High waisted medium Briefs Perfect curves
Shorty Oriane
Briefs Suzan
Transparent self-holding stockings Self-holding stockings
Medium briefs Carla
Shorty Unseen
Pack of 3 microfiber thongs Discrète
Medium Briefs Arum
Briefs Capucine
Medium Briefs Suzie
Sculpting panty New Generation Slimmers
Briefs Amélie
Brief Mélodie
Panty - Pack of 2 Slimmers
Shorty Oriane
Briefs Désiré
Shorty Unseen
Medium briefs Rosa Fantaisie
Briefs Carla
Pack of 2 medium briefs Invisible Coton
Sans Complexe Paris has designed a wide range of plus size knickers for curvier figures: comfort, support and soft fabrics that never dig in.
Why choose the right plus size knickers
Finding plus size knickers that stay put without digging in, that breathe and move with your body rather than fighting it — that's the whole point of underwear designed for fuller figures. At Sans Complexe Paris, we design cuts specifically graded for curvier shapes, up to size 54/56 — with real attention to the leg opening, elastic and fabric for genuine everyday comfort.
Comfortable knickers for a fuller bust and figure aren't just about cup size: how your curves are distributed also affects the best bottom style for you. That's why we offer a full range designed to pair with our plus size bras, so you can put together a matching, well-supported set.
Our belief: every body deserves comfortable plus size underwear, with no judgement and no compromise on style. Browse our full plus size lingerie range to build your perfect look.
Our range of plus size knickers
Classic or shaping cuts, natural fabrics or second-skin finishes: our collection covers every need. We also offer plus size cotton knickers for everyday wear, plus size briefs for a natural shape with no visible seams, and seamless plus size knickers in microfibre, perfect under fitted clothing.
High-waisted knickers, plus size
High-waisted knickers are the most versatile cut: they cover the tummy, offer gentle support without compressing, and work equally well for everyday wear or dressier occasions. They're often the first choice for anyone after a tummy-control plus size style with soft support, without a heavy shaping effect.
Shapewear knickers, plus size
For firmer control, shapewear knickers smooth the silhouette under fitted clothing while still breathing well. Our styles use stretch lace panels to avoid any stiff feel, with graduated compression rather than uniform pressure — more comfortable over a full day.
Plus size shorts
Our shorts-style knickers offer fuller coverage, ideal for anyone who prioritises comfort and zero marking on the hips. Our plus size shorts come in soft cotton for everyday wear and in lace for more special occasions.
How to choose the right plus size knickers
What size to choose (size guide)
The right knickers size is based on your hip measurement, not your waist alone — a common mistake that explains a lot of discomfort. Our size guide covers the full conversion and the measuring points to take at home, so you can shop with confidence.
Which fabric to choose depending on use
Cotton remains the go-to for everyday wear: breathable, hypoallergenic, and kind to sensitive skin. Microfibre, being finer, works better for seamless plus size knickers under close-fitting clothes. Stretch lace, meanwhile, adds elasticity while staying delicate — a good balance of hold and comfort for shapewear styles.
Frequently Asked Questions: Everything About Plus Size Knickers
What knickers should I choose for a curvier figure?
It mostly comes down to how much support you're after. For generous coverage without compression, high-waisted knickers are the most versatile: they wrap around the tummy and hips without ever digging in. If you want more shaping, go for shapewear knickers, where graduated compression smooths without over-squeezing. Shorts-style knickers, which cover more of the thigh, suit anyone who puts everyday comfort first. In all three cases, fabric — cotton for daily wear, microfibre for invisibility, stretch lace for elegance — completes the choice depending on the occasion.
What's the difference between high-waisted and shapewear knickers?
High-waisted knickers cover the belly button and much of the tummy, with gentle support coming mainly from the height of the cut and the stretch of the fabric — they support rather than compress. Shapewear knickers, on the other hand, build in graduated-compression zones, often in stretch lace or reinforced microfibre, that actively smooth the silhouette under fitted clothing. In short: high-waisted covers, shapewear sculpts. Many of our customers switch between the two depending on what they're wearing on top.
Which fabric doesn't show through clothing?
Microfibre is the go-to for invisible plus size knickers: its fine texture and lack of visible seams, often thanks to laser-cut edges or bonded hems, stop any show-through under a dress or fitted trousers. Cotton, being thicker, suits everyday comfort better than discretion under close-fitting outfits. Stretch lace, meanwhile, is best kept for occasions where style matters more than total invisibility.
What's the largest size available in plus size knickers?
Our knickers and briefs are available up to size 54/56. This range lets us cover body shapes that few general retailers cater to, with cuts specifically graded — not simply scaled up — for every size step.
Are shapewear knickers in plus sizes uncomfortable?
Not if you choose the right style. Lower-quality shapewear uses uniform compression, which can genuinely dig in and become uncomfortable over time. Our shapewear knickers instead build in graduated-compression zones and breathable stretch lace panels for effective smoothing without that squeezed feeling. The key sign of a good one: comfortable shapewear knickers should never leave visible marks after several hours of wear.
How do I find my knickers size (size conversion)?
The key measurement is your hip circumference, taken at its widest point, not your waist. Check this measurement against our size guide to find the exact match: charts can vary slightly by cut, as shapewear styles sometimes fit closer to the body than a classic high-waisted style. If you're between two sizes, always go up a size to keep the fabric comfortable and breathable.

















































