4XL–6XL Plus
Cut for curves, with two adjustable belts so you can fine-tune the fit every time you wear it.
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Coast to coast, on every orderOnly a few left in stock — get yours before they're gone
Shop nowNew Double-belt waist trainer
Zip it. Strap it.
Walk out tighter.
Plus sizes 4XL–6XL Three colours From
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View productBuilt to shape
Two belts, a front zip and a snug neoprene core — every part tuned to cinch, hold and move with you.
Easy on
Front zip
No fiddly rows of hooks. Wrap it around, pull the heavy-duty front zip up, and the core panel is locked in place in seconds — then take it off just as fast.
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Adjustable
Double belts
Two wide hook-and-loop straps wrap over the core, one at the waist and one lower down. Pull each one as tight as you like for a hold that suits your body, not a chart.
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Three colours
Pick your shade
Neon pink to stand out, heather gray to blend with any workout set, or black to disappear under your outfit.
All day
A hold that moves with you
Flexible boning and stretch neoprene keep the shape where it belongs while you bend, lift, walk and sit — snug and supportive, without digging in.
Workout ready
Sweat core
The neoprene core traps heat around your midsection, so you feel every rep. Wear it for cardio, a gym session or a long walk.
Double belt
Twice the cinch
One belt shapes the waist, the other smooths the lower belly. Set each one separately, so it feels snug where you want it and comfortable where you need it.
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Our bestselling trainer
Everyday
Wear it your way
Strap it on for a morning walk, a gym session or a long day at work. The snug compression reminds you to stand tall, and the shape stays put while you get on with your day.
Shop the trainerPlus size, proper fit
Made for 4XL to 6XL from the start, not scaled up as an afterthought. No pinching, no rolling, just a clean line.
Discover
Built for curves, made to move
Every detail is there for a reason: a zip that won't give way, belts that won't slip, and neoprene that holds firm without feeling stiff. Put it on, tighten up, and go.
Materials
Neoprene that holds
A firm neoprene core with reinforced seams and black edge binding all round, so it keeps its shape wear after wear and doesn't roll at the edges.
Workout ready
Sweat it out
Squats, cardio, a brisk walk. The trainer stays locked in while you move, and the neoprene core turns up the heat on every session.
Shop the trainerSecure hold
Locked in all day
The zip holds the core in place, and two wide straps lock the fit on top. Three layers of security, so nothing shifts when you do.
Frequently asked questions
How do I choose my size?
Measure around the narrowest part of your waist with a soft tape, then compare it with the size chart on the product page. The trainer comes in 4XL, 5XL and 6XL.
If you are between two sizes, choose the larger one. The two adjustable belts let you tighten the fit from there.
How long should I wear it each day?
Start with an hour or two and build up as your body gets used to it. It should feel snug and supportive, never painful.
If you feel pinched or short of breath, loosen the belts or take it off. Listen to your body, and talk to your doctor first if you are pregnant or have a medical condition.
Can I work out in it?
Yes, it's made for it. The neoprene core holds in heat while you train, and the double belts stay put through squats, cardio and walking.
Drink plenty of water and loosen the straps a little for high-intensity sessions.
Will it show under my clothes?
Under most tops, dresses and jackets, no. The black and heather gray colours are the most discreet. Neon pink is made to be seen over your gym wear.
How do I wash it?
Close the zip and fasten the belts first. Hand wash in cool water with a mild soap, then lay it flat to air dry, away from direct heat. Always check the care label first.
Plus sizes 4XL–6XL · Three colours · Secure checkout
Find your fit
Choose your colour, pick your size, and tighten the belts until it feels right. Zip it, strap it and walk out tighter.