Why Sizing Shapewear Is Different from Clothing
Shapewear sizing is notoriously tricky. Unlike regular clothing where you might size up for comfort, going too large in shapewear means losing the compression that makes it effective. Going too small creates discomfort, visible bulges, and restricted movement. Getting your measurements right before you buy is essential.
What You'll Need
- A flexible measuring tape (not a rigid ruler)
- A mirror or a friend to help
- Thin, form-fitting clothing or undergarments (no bulky layers)
- A notebook to record your measurements
Step-by-Step Measurement Guide
1. Bust (if buying a bodysuit or camisole)
Wrap the measuring tape around the fullest part of your chest, keeping it parallel to the floor. Don't pull it tight — it should sit snugly without compressing. Record this in inches and centimeters.
2. Underbust (for bodysuits with bra support)
Measure directly under your bust, around your ribcage. Keep the tape firm but not tight. This helps determine band size if the garment includes built-in bra support.
3. Natural Waist
Find your natural waist — the narrowest part of your torso, usually about an inch above your belly button. Exhale normally before measuring. Don't suck in — your measurement should reflect your natural resting size.
4. Hips
Stand with your feet together and measure around the fullest part of your hips and seat, typically 7–9 inches below your natural waist. This is critical for shorts, briefs, and bodysuits.
5. Inseam / Thigh (for shorts and thigh slimmers)
Measure from your inner crotch seam down to where you want the garment to end. Also measure around the widest part of your thigh to ensure a smooth fit without rolling or cutting in.
How to Use Your Measurements
Every brand has its own sizing chart. Always cross-reference your measurements against the brand's chart — not your typical dress or clothing size. If your measurements fall between two sizes:
- Size up if you prioritize comfort and all-day wearability.
- Stay true to size if you want firm shaping and are wearing it for a shorter period.
- Never size down — this is the most common mistake and leads to rolling, digging, and discomfort.
Common Sizing Mistakes to Avoid
- Using your clothing size instead of measurements. Shapewear sizing rarely aligns with standard clothing sizes.
- Measuring over thick clothing. Always measure over thin or no clothing for accuracy.
- Forgetting to re-measure. Your body changes — always re-measure if you haven't bought shapewear in six months or more.
- Ignoring the length chart. For shorts and bodysuits, torso and inseam length matter as much as circumference.
Signs Your Shapewear Doesn't Fit
Even after careful measuring, it's worth knowing the signs of a poor fit once the garment is on:
- Rolling down at the waistband or up at the leg openings
- Visible bulging above or below the garment edges
- Difficulty breathing deeply or bending at the waist
- Straps digging into shoulders or sides
- Gusset sitting in the wrong position
Final Tip: Try It On at Home
If buying in-store, wear a fitted outfit so you can try shapewear in realistic conditions. If ordering online, buy from retailers with generous return or exchange policies while you find your perfect fit. Taking ten minutes to measure properly can save hours of returns and discomfort.