Waist Trainer – Slim Your Waist & Shape Curves
Waist Trainer – Slim Your Waist & Shape Curves
Fits sizes:6-8| Waist:29.5-33in, Hips:38.5-42in
Size guid
Size guid
The right size is what makes shapewear work. Too small and it rolls, digs in and feels painful; too big and it won't smooth. Use this guide to find your size for Cups Brazil fajas, bodysuits, shaper panties and waist trainers.
How to measure
- Waist: measure around your natural waist, the narrowest part of your torso, usually just above your belly button. Keep the tape snug but not tight.
- Hips: stand with feet together and measure around the fullest part of your hips and seat.
- Measure over bare skin or thin underwear, and breathe normally.
Size chart
| Size | US pant size | Waist (in) | Hips (in) |
|---|---|---|---|
| S | 2–4 | 26–29 | 35.5–38 |
| M | 6–8 | 29.5–33 | 38.5–42 |
| L | 10–12 | 33.5–36 | 42.5–45 |
| XL | 14–16 | 36.5–38.5 | 45.5–48 |
| 2XL | 18–20 | 39–42 | 48.5–52 |
| 3XL | 22 | 42.5–46 | 52.5–55.5 |
| 4XL | 24 | 46.5–50 | 56–58 |
Some styles run differently, so always check the size chart on the product page too.
Sizing tips
- Between sizes? Choose the larger one. Shapewear should feel snug, never painful.
- Waist and hips in different sizes? For waist trainers, go by your waist. For panties, shorts and bodysuits, go by your hips. For full-body fajas, go by the larger measurement.
- Waist trainers: start on the loosest hook row and build up wear time gradually.
- Post-surgery fajas: follow your surgeon's sizing and compression guidance.
- Fit check: you should be able to breathe deeply, sit for 15 minutes and move freely.
Still unsure? Email support@cupsbrazil.com with your waist and hip measurements and the product you want, and we'll recommend a size. More help in our FAQ and Shapewear Tips & Style Guides.
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Product Description
Product Description
This Waist Trainer gives your midsection firm yet comfortable compression to define your waist, smooth your tummy and support your back while you wear it. Made from breathable, flexible materials, it moves with you through workdays, workouts and special occasions.
Key Features
- Waist definition: Firm compression shapes the waist and smooths the abdomen under clothing.
- Back and posture support: The structured design supports your back and helps you sit and stand taller.
- Adjustable fit: Hook and zipper closure lets you set a fit that works for your body.
- Breathable comfort: Soft, flexible fabric adapts as you walk, sit or exercise and is designed to stay in place without rolling or pinching.
- Discreet under clothes: Wear it under casual outfits, office looks or evening dresses.
How to Choose Your Size
Measure your natural waist (the narrowest part of your torso) with the tape snug but not tight, then compare with the size chart. If you're between sizes, choose the larger size. It should feel like a firm hug, and you should always be able to breathe deeply and sit comfortably.
Wearing Tips
- Start with 1 to 2 hours a day and build up gradually.
- Never over-tighten. Loosen or remove it if you feel pinching, numbness or shortness of breath.
- If you're pregnant, postpartum or recovering from surgery, follow your doctor's guidance before wearing it.
A waist trainer shapes your look while you wear it; it doesn't burn fat or permanently change your body.
FIT & FABRIC
FIT & FABRIC
• 58% Nylon+42% Spandex
• Hand wash
• Do not dry clean
• Do not iron
• Do not bleach
• Do not tumble dry
Care instructions
Care instructions
Wash max 30°, do not bleach, do not tumble dry, iron at low temperature, dry clean.
Shipping & Returns
Shipping & Returns
SHIPPING POLICY• Free Shipping on Orders $80+ (US Only)
• Please allow 2-4 business days for standard processing before your order ships.
RETURN POLICY• We accept exchanges & returns within 30 days of receiving.Free gifts, mystery box, bras & underwear and items marked final saleare not eligible for return.
• Products must be returned unworn, unwashed, in their original condition and with all tags and liners attached.
• We ask that you wear underwear when first trying-on your purchase, as we reserve the right to refuse returns that show any signs of wear.
Feel More Supported with Our Waist Trainer
Comfort meets smart shaping
- Order today and receive our premium, best-selling waist trainer designed for daily comfort.
Wear it during workouts or everyday activities — built to support posture and provide a smooth, secure fit.
Not satisfied with the comfort or fit? Exchange or get FULL refund.
✅ No risk. Just better support, comfort, and confidence throughout your day
PRODUCT FEATURES
Before After
Slim Fit Trainer
Breathable Waist
Tummy Control
It makes my outfits look better instantly and feels breathable.
The material is soft but very sculpting and completely invisible under clothes.
It makes my outfits look better instantly and feels breathable.
This shapewear fits perfectly and smooths everything without feeling tight.
This shapewear fits perfectly and smooths everything without feeling tight.
I wore this all day and it stayed comfortable while giving great support.
This shapewear smooths everything out and, coming from Cups Brazil, feels noticeably higher quality than most options.
I feel confident wearing this under dresses, and Cups Brazil clearly paid attention to comfort.
Cups Brazil delivered exactly what I was looking for with this piece—it shapes beautifully without feeling restrictive.
It feels supportive without digging in, which is something Cups Brazil seems to do really well.
Soft, breathable, and very effective at shaping my waist and midsection. I forget I’m even wearing it.
The compression is just right and makes my outfits look polished instantly. Definitely feels higher quality than most shapewear I’ve tried.
I wore this all day and it stayed comfortable while giving great support.
I wore this all day and it stayed comfortable while giving great support.
It makes my outfits look better instantly and feels breathable.
Supportive, flattering, and surprisingly comfortable for long wear.
Creates a smooth silhouette under my dresses with no lines showing.
Cups Brazil really impressed me with this shapewear, as it smooths everything out while staying comfortable all day.
I wore this all day and it stayed comfortable while giving great support.
Supportive, flattering, and surprisingly comfortable for long wear.
Supportive, flattering, and surprisingly comfortable for long wear.
It makes my outfits look better instantly and feels breathable.
Love how supportive it feels while still being breathable and soft.
I feel confident wearing this under dresses, and Cups Brazil clearly paid attention to comfort.
I wore this all day and it stayed comfortable while giving great support.
I wore this all day and it stayed comfortable while giving great support.
I wore this all day and it stayed comfortable while giving great support.
Creates a smooth silhouette under my dresses with no lines showing.
It feels supportive without digging in, which is something Cups Brazil seems to do really well.
This shapewear fits perfectly and smooths everything without feeling tight.
This shapewear fits perfectly and smooths everything without feeling tight.
The material is soft but very sculpting and completely invisible under clothes.
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