Women Shapers Underwear Backless

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

1. 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.
2. Hips: stand with feet together and measure around the fullest part of your hips and seat.
3. Measure over bare skin or thin underwear, and breathe normally.

Size chart

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.

Women Shapers Underwear Backless are specially designed to provide shaping support while remaining invisible under backless and low-back outfits. These shapers help smooth the tummy and define the waist without interfering with the look of open-back dresses or tops, making them ideal for special occasions and evening wear.

Made from soft, breathable, and stretchable fabric, these backless shapers offer a comfortable fit that moves naturally with your body. The lightweight material feels gentle on the skin and allows for extended wear without discomfort. Women shapers underwear backless designs provide reliable shaping while maintaining a discreet appearance under clothing.

The low-back construction ensures the shaper stays hidden, while the secure fit helps prevent slipping or rolling. Seamless edges reduce visible lines, allowing you to wear fitted dresses with confidence. These shapers are suitable for weddings, parties, formal events, or any outfit that requires a backless solution.

Durable and easy to care for, these shaping underwear retain their elasticity and structure after repeated washing. Available in multiple sizes, they are designed to suit different body types while offering natural-looking support. Women shapers underwear backless combine functionality, comfort, and style, making them an essential wardrobe solution for backless fashion.

• 58% Nylon+42% Spandex
• Hand wash
• Do not dry clean
• Do not iron
• Do not bleach
• Do not tumble dry

Wash max 30°, do not bleach, do not tumble dry, iron at low temperature, dry clean.

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.