Ultimate Shapewear Guide: How to Find Your Perfect Fit

Are you ready to unlock your most confident self and celebrate every curve? Here at Seennsi, we proudly craft inclusive, body-positive shapewear in sizes from XS to 6XL, designed with love in Brazil, tailored for women across North America.
Shapewear isn’t just underwear; it's a confidence booster, a posture helper, and your new best friend. This guide will show you exactly how to measure yourself and select the best shapewear for your unique body type.
How to choose the perfect shapewear size
At Seennsi, we understand that choosing between two shapewear sizes can feel challenging. Here’s our expert advice to help you select the best size for your curves:
Prefer a firm and sculpted fit?
Go with the smaller size, it comfortably compresses, smooths, and defines your shape, providing maximum support.
Looking for comfort and gentle shaping?
Choose the larger size for a more relaxed, breathable feel that moves effortlessly with your body throughout the day. Always remember: your beauty and confidence aren’t determined by a size, but rather by how empowered and comfortable you feel wearing your shapewear.
Ready to find your ideal shapewear size? Follow our easy at-home measurement guide using a flexible measuring tape, and record your measurements conveniently on your phone or paper.
Together, let's embrace your natural curves, reconnect with your feminine confidence, and celebrate your beauty every day.

How to Measure Your Waist
When measuring your waist, keep the process straightforward and accurate. Begin by standing without clothing and wrap a measuring tape around your midsection. There are two effective methods to locate your natural waistline:
- Around the Navel: Position the tape around the soft, fleshy area between your ribs and hips, ensuring it rests at or just above your navel.
- Side Lean Technique: Stand with your hands on your hips and lean to one side. The crease that forms where your torso naturally narrows is your waistline.
How to Measure Your hips
To measure your hips, start by standing with your feet close together. Grab a tape measure and wrap it around the fullest part of your hips,
making sure to include your butt. The tape should cover the softest, roundest areas to give you the most accurate measurement. This step is key to finding shapewear that fits perfectly, so take a moment to make sure you get it just right!
How to Measure Your Bust
To accurately measure your bust for the perfect bra size, wrap a soft measuring tape around the fullest part of your breasts, typically at nipple level. Keep the tape horizontal, snug yet comfortable, without squeezing. Stand straight and relaxed, preferably without a bra or with minimal padding, to ensure precise bust measurements. Note down the measurement clearly—this is key to finding comfortable, supportive lingerie tailored to your body.
Why Choose Inclusive Shapewear by Seennsi?
When it comes to shapewear, comfort and confidence should never depend on your size. At Seennsi, we embrace body positivity, providing shapewear that comfortably shapes your curves—whether you're petite or proudly plus size (XS–6XL).
Benefits of choosing inclusive shapewear by Seennsi:
- Instant, comfortable shaping for every body type;
- Improved posture and comfortable support;
- High-quality fabrics crafted in Brazil
- Inclusive sizing from XS to 6XL for all-day wear;
- Boosted confidence for special occasions and everyday life;
How to find the shapewear size

Alright, now that you've got your shapewear measurements, the next thing you want to do is check them against the size chart. I know it sounds like a small step, but it’s super important to make sure you pick the perfect size.
Every brand has its own size chart, so just make sure you're looking at the right one for the shapewear you’re about to buy. Once you compare your measurements to the chart, it'll show you which size will fit your body best. Trust me, getting the size right makes all the difference. it’ll feel comfy, smooth, and give you that perfect, flattering shape.
So take a minute, double-check the chart, and you’ll be good to go! You’ve totally got this!

International Size Conversion Chart (Brazil to US/Canada & Europe)

Choosing the Best Shapewear for Your Body Shape
Each body type is beautiful, and choosing shapewear that enhances your natural silhouette makes all the difference:
Rectangle Body Shape (Straight Body Type): Choose shapewear emphasizing waist definition to create curves.
Pear Body Shape (Triangle Body Type): Focus on shapewear with extra support around the hips and thighs, emphasizing your natural waistline.
Apple Body Shape (Oval Body Type): Go for shapewear designed with firm abdominal support.
Hourglass Body Shape (Curvy Body Type): Choose shapewear that gently enhances and supports your natural proportions.
Inverted Triangle Body Shape: Pick shapewear designed to visually balance your figure by accentuating your hips and gently defining the waistline.
Ready to feel empowered and comfortable in your shapewear?
We hope this ultimate guide on how to measure your shapewear size helped you find your ideal fit. Shopping for shapewear should always be fun and stress-free, so remember: At Sennssi, you get a 30-day fit guarantee—shop confidently knowing your perfect size is just a click away!
Need personalized advice? Our friendly Fit Experts are always available to guide you toward comfortable, supportive shapewear tailored just for you.
Want more comfort and style? Check out our popular collections of: Plus Size Bra and Plus Size Panties