Postpartum Undies Sizing Guide: How to Choose the Right Fit

Postpartum undies only work if they actually fit — too tight and they dig in exactly where you don't want pressure, too loose and they roll down or bunch. Here's how to measure correctly and how women's underwear sizing actually works.

Where to measure for the right fit

Measure around the natural waistline — typically the narrowest part of your torso, above your belly button. For high-waist and postpartum styles specifically, also measure around the widest part of your hips, since these styles are cut to sit higher and cover more of the abdomen than standard underwear.

How women's underwear sizing actually works

Unlike standard clothing sizes, underwear sizing is based on body measurements, not your usual dress or pants size. Brands vary widely, so a size Large in one brand can fit completely differently in another — always check the actual measurement chart rather than assuming your regular size will translate directly.

Why sizing matters even more postpartum

Postpartum bodies change quickly and unpredictably during recovery. Sizing up rather than down is usually the safer choice during this period — a slightly looser fit is far more comfortable than anything that adds pressure while your body is healing. Look for inclusive size ranges and soft, breathable fabric that won't irritate sensitive skin.

What to look for in postpartum undies specifically

Beyond correct sizing, the details matter: a waistband that won't roll or dig in, breathable natural fabric like cotton, and a high-waist cut that offers gentle coverage without added compression. These are the details that make the difference between undies you tolerate and undies you actually reach for every day. BodiModi's Postpartum Undies were built around exactly this — soft antibacterial cotton, a non-rolling waistband, and inclusive sizing up to 5XL.

Explore BodiModi's Postpartum Undies — soft, breathable, high-waist support in sizes M–5XL.