WF Core Trainer
Save 20% with PowerBelt — applied automatically.
Everyday Compression. A Fit You Can Adjust.
The WF Core Trainer combines a zipper closure with adjustable straps around the midsection, letting you personalize the fit and compression around your waist. Seven boning rods add structure, while the close-fitting design creates a smoother silhouette while worn.
Designed Around Your Fit
- Zipper closure: Zip the trainer closed, then adjust the midsection straps to fine-tune your fit.
- Adjustable midsection straps: Tighten or loosen the straps to customize the compression around your waist.
- Seven boning rods: Add structure to the trainer.
- Shaping while worn: Compression helps create a smoother, more defined appearance around your waist while the trainer is on.
Materials & Lining
- Fabric: 96% nylon, 4% spandex.
- Latex: 100% natural latex.
- Lining: 96% cotton, 4% spandex.
Choose Your Size
Measure your natural waist and compare it with our Size Guide before ordering. Use your waist measurement as your main reference; pants sizes vary by brand. If you are between sizes or unsure, contact us for help choosing your fit.
Complete Your Set
Pair it with the PowerBelt Trainer and save 20% on the Core Trainer automatically when you add both to your cart. No code needed.
Why It Works
- Free shipping on orders $50+
- Secure checkout & protected payment
- Built for structure, comfort, and consistency
Size Guide
📏 Size & Fit
👉 View our Size Guide for detailed charts and measurement tips.
Core Trainer
→ Everyday stability & posture support
Power Belt Trainer
→ Structured gym support
Elite Trainer
→ Advanced compression & core control