★★★★★ Designed to support your shape and confidence
Feel confident in your own skin — every day
The Athlete Prime Waist Trainer shapes your waist, improves your posture and brings back your self-esteem — comfortable enough to wear all day, under anything.
✚ Free UK shipping · Delivered in 3–8 business days
- Instant fit
- Premium fabric
- Easy size exchange
More than a waist trainer — a new relationship with the mirror
At Athlete Prime, we believe every woman deserves to feel powerful. That's exactly what our trainer was made for.
Self-esteem on top
A smoother silhouette can help you feel composed and confident in the outfits you already love.
Instant silhouette
A slimmer waist right away, under any outfit — from dresses to casual looks. Nobody notices you're wearing it.
Better posture
The flexible support keeps your back aligned and reminds you to stand tall throughout the day.
Your workout ally
Extra compression and sweat around the abdominal area during exercise — your motivation to keep going.
All-day comfort
High-quality latex, lightweight and breathable. You'll forget you're wearing it — but the mirror won't.
3 rows of hooks
Progressive adjustment that follows your journey. Tighten it as your waist changes.
Designed with premium latex and 3 rows of hooks
- Firm compression latex that shapes without pinching
- 3 rows of hooks to adjust as you progress
- Flexible boning that supports your posture comfortably
- Discreet under clothes — perfect for work, workouts or nights out
- Breathable design to wear in any season
Find your best fit
Measure around the narrowest part of your waist. Keep the tape level and comfortably snug.
S
- Waist
- 60.96–66.04 cm
- Bust
- 81.28–86.36 cm
- UK
- 6–8
- US
- 4–6
M
- Waist
- 66.04–71.12 cm
- Bust
- 86.36–91.44 cm
- UK
- 8–10
- US
- 6–8
L
- Waist
- 71.12–76.20 cm
- Bust
- 91.44–96.52 cm
- UK
- 10–12
- US
- 8–10
XL
- Waist
- 76.20–81.28 cm
- Bust
- 96.52–101.60 cm
- UK
- 12–14
- US
- 10–12
2XL
- Waist
- 81.28–86.36 cm
- Bust
- 101.60–106.68 cm
- UK
- 14–16
- US
- 12–14
3XL
- Waist
- 86.36–91.44 cm
- Bust
- 106.68–111.76 cm
- UK
- 16–18
- US
- 14–16
4XL
- Waist
- 91.44–96.52 cm
- Bust
- 111.76–116.84 cm
- UK
- 18–20
- US
- 16–18
5XL
- Waist
- 96.52–101.60 cm
- Bust
- 116.84–121.92 cm
- UK
- 20–22
- US
- 18–20
6XL
- Waist
- 101.60–106.68 cm
- Bust
- 121.92–127 cm
- UK
- 22–24
- US
- 20–22
Between sizes? Choose the larger size for a more comfortable fit.
Your new self starts with one decision
Half the price and free UK shipping. Choose your colour and size below.
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✚ Free shipping across the UK
Choose your size
View size guideSecure payment handled by Athlete Prime
Frequently asked questions
How do I choose my size?
Measure around the narrowest part of your waist and use the size guide above. If you're between sizes, choose the larger size for a more comfortable fit.
Can I wear it all day?
Start gradually and listen to your body. The right fit should feel supportive, never painful or restrictive.
How long does delivery take?
We ship free of charge across the UK. Delivery takes 3 to 8 business days.