Quick Answer
Look for a maternity thong with a soft, stretchy over-the-bump panel and breathable fabric like Supima® Cotton or moisture-wicking BreatheSoft™. Choose a rise that sits comfortably above your belly, and prioritize tested-for-maternity designs that won't dig or roll.
Why a Maternity Thong Is Different from Your Regular Thong
A standard thong's waistband sits across the lower belly, which becomes uncomfortable as your bump grows. Maternity thongs use a higher rise or an over-the-bump panel to sit above the belly, eliminating pressure and rolling. They also use softer elastics and more forgiving fabrics to accommodate shifting proportions without digging in.
The trade-off is that over-the-bump thongs can feel warm in hot weather, so breathable or moisture-wicking materials become important. If you prefer underwear that sits below the bump, look for a low-rise maternity thong, but note that it may not stay in place as well during the third trimester.
Fabric Matters: Cotton vs. Performance Blends
Cotton is a classic choice because it's breathable and gentle on sensitive skin. Supima® Cotton, in particular, is extra-long staple cotton that resists pilling and stays soft wash after wash. For moms-to-be dealing with night sweats or warmer climates, a moisture-wicking fabric like BreatheSoft™ can help keep you dry and comfortable.
Performance blends tend to have more stretch and recovery, meaning they'll adapt better as your belly grows. The downside is they can be less breathable than cotton. If you have sensitive skin or are prone to irritation, stick with cotton or a cotton-dominant blend.
How to Choose Your Maternity Thong: 4 Steps
- Step 1: Decide on the Rise: Choose over-the-bump if you want full belly coverage and no waistband pressure. Choose below-bump if you prefer your underwear to sit under your belly. Over-the-bump is more stable as your bump grows. Checkpoint: If you buy below-bump, expect to adjust sizing in the third trimester.
- Step 2: Pick the Right Fabric: For everyday wear and sensitive skin, go with breathable Supima® Cotton. For active days or warm weather, choose moisture-wicking BreatheSoft™. Avoid purely synthetic fabrics that trap heat. Checkpoint: Cotton maternity thongs are gentler but may not wick sweat as well.
- Step 3: Check the Elastic and Seams: Look for flat, soft elastics that won't dig into your hips or belly. Avoid thongs with thick side seams that can rub. Maternity-specific designs often use wider, softer waistbands. Checkpoint: If the elastic feels stiff in the store, it will only get worse with wear.
- Step 4: Size Up for Later Trimester Comfort: Maternity thongs are sized to accommodate a growing belly, but if you're between sizes, size up for the third trimester. A too-small thong will roll and dig, defeating the purpose. Checkpoint: Many moms buy two sizes: one for early pregnancy and one for the final months.
Products Mentioned in This Guide
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Supima® Cotton Maternity Over The Bump Thong Chai Sale: Our newest maternity line is designed For Every You®. Designed in the best-selling Hanky Panky Thong silhouette in feel-good fabrics like breathable Supima® Cotton, these undies have been tested by moms for moms. The Supima® Cotton maternity thong gives you the same no-show fit you love, with a soft over-the-bump panel that stays put and won't irritate your belly.
Supima® Cotton Maternity Over The Bump Thong Chai Sale
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BreatheSoft™ Maternity Over The Bump Boyshort Taupe Sale: Designed in the best-selling Hanky Panky Boyshort silhouette in feel-good fabrics like moisture-wicking BreatheSoft®, these undies have been tested by moms for moms. If you prefer a boyshort cut but want moisture-wicking performance, the BreatheSoft™ maternity boyshort offers full coverage with a stay-dry feel.
BreatheSoft™ Maternity Over The Bump Boyshort Taupe Sale
