Maternity Biker Shorts — BONVIGOR Buttercloud Over the Belly
Clicking the button above supports our work. As an Amazon Associate, we earn a small commission on qualifying purchases at no extra cost to you. We only recommend products we believe in.
At a Glance
The BONVIGOR Buttercloud Maternity Biker Shorts are over-the-belly pregnancy shorts with a high-waisted U-shaped panel that grows with your bump. Made from 90% polyester and 10% spandex, the Buttercloud fabric is stretchy, breathable, and soft. Available in 5-inch and 8-inch inseam lengths, sizes S through 2XL, and multiple colors. Flatlock stitching prevents chafing. Machine washable. Rated 4.6 stars with 4,600+ reviews on Amazon.
By the second trimester, your regular shorts don't fit — and the ones that technically still button leave you with a red mark across your belly by noon. You're not ready to give up feeling comfortable in your own clothes just because your body is changing.
The right pair of maternity biker shorts should feel like they were made for the body you have right now — not the one you had three months ago.
Description
The BONVIGOR Buttercloud Maternity Biker Shorts are a high-waisted, over-the-belly pair of maternity biker shorts designed to grow with your bump from the second trimester through delivery — and beyond. The U-shaped belly panel sits above your waist and stretches without compressing, so there's no rolling, no digging, and no readjusting throughout the day.
The fabric is what BONVIGOR calls "Buttercloud" — a 90% polyester, 10% spandex blend that's genuinely soft, breathable, and stretchy in all four directions. It's not the thin, see-through material you sometimes find with budget maternity biker shorts. Multiple reviewers specifically note that these are opaque and substantial enough for workouts, errands, and wearing on their own.
These shorts come in two inseam lengths — 5 inches and 8 inches — so you can choose based on your preference and how you plan to wear them. The 5-inch is great for casual wear and warmer weather. The 8-inch works well for workouts, under dresses to prevent thigh chafing, or if you simply prefer more coverage.
The flatlock stitching is a detail worth mentioning. Standard seams can dig into sensitive skin during pregnancy — especially along the inner thigh and under the belly. Flatlock stitching lies flat against your skin, which reduces irritation and makes these comfortable for extended wear. The gusseted crotch adds mobility without bunching.
Sizes run from Small through XX-Large, and the cut is designed to work before, during, and after pregnancy. At $19.99 for a 2-pack in the basic black, these are priced to buy multiples — which, given how much time you'll spend in maternity biker shorts during the second and third trimester, is exactly the point.
Why women love it
- Over-the-belly U-shaped panel — high-waisted support that grows with your bump without rolling or compressing
- Buttercloud fabric — 90% polyester, 10% spandex that's genuinely soft, stretchy, and opaque
- Flatlock stitching — lies flat against skin to prevent chafing and irritation during pregnancy
- Two inseam options — 5-inch for everyday wear, 8-inch for workouts or under dresses
- Gusseted crotch — added mobility and comfort for all-day movement
- Sizes S through 2XL — inclusive sizing that fits a wide range of body types.
Best for
- Everyday comfort during the second and third trimester — errands, lounging, working from home
- Pregnancy workouts — yoga, walking, pilates, light strength training
- Wearing under dresses and skirts to prevent thigh chafing as your body changes
- Layering with longer tops, cardigans, or oversized tees for a casual maternity outfit
- Postpartum wear — the stretchy panel works well for the weeks after delivery while your body recovers
- A practical baby shower or pregnancy care package gift — affordable enough to include multiple pairs
Dressing your changing body
Getting dressed during pregnancy shouldn't feel like a daily frustration. Comfortable basics that actually fit — and that you don't mind wearing on repeat — make a bigger difference than most people realize. For more products to support you through pregnancy, browse our full pregnancy essentials collection for curated items that address the real, daily needs of each trimester — from comfort and sleep to skincare and emotional support.
If you're looking for more ways to take care of yourself during pregnancy, Mindy's pregnancy advice articles cover everything from physical changes by trimester to the emotional side of watching your body evolve.
Frequently asked questions
Are these maternity biker shorts see-through?
No. The BONVIGOR Buttercloud fabric is opaque and substantial — multiple reviewers specifically confirm they're not see-through, even when stretched over a full belly. The 90% polyester, 10% spandex blend holds its shape and coverage through squats, bending, and daily wear.
What's the difference between the 5-inch and 8-inch inseam?
The 5-inch inseam hits mid-thigh and works well for casual wear, warm weather, and shorter frames. The 8-inch inseam provides more coverage and is better for workouts, wearing under dresses to prevent chafing, or if you prefer more thigh coverage. Both have the same over-the-belly panel and Buttercloud fabric.
Can I wear these maternity biker shorts after pregnancy?
Yes. The stretchy U-shaped panel and flexible waistband work well postpartum while your body is recovering. Many women wear them for several weeks or months after delivery. The fabric adjusts to your changing shape without losing elasticity.
Do these shorts roll down under the belly?
No —The high-waisted, U-shaped panel is designed to stay in place above your bump. This is one of the most common complaints with regular shorts during pregnancy, and BONVIGOR specifically addresses it. Reviewers consistently note that the panel stays put without needing adjustment.
What size should I order for maternity biker shorts?
BONVIGOR recommends ordering your pre-pregnancy size. The fabric stretches to accommodate your growing belly. Sizes range from Small through XX-Large. If you're between sizes or prefer a looser fit, sizing up one is a safe choice — the stretchy material will still hold its shape.
Are these comfortable enough to sleep in?
Many women do wear them for sleeping, especially in the later months when belly support helps with comfort at night. The Buttercloud fabric is soft and breathable, and the flatlock stitching means no seams digging into your skin while you're trying to rest.
Are these a good gift for someone who is pregnant?
Yes — comfortable maternity biker shorts are one of those practical gifts that pregnant women actually use every day. At $19.99 for a 2-pack, they're affordable enough to pair with other items from our pregnancy essentials collection for a thoughtful, useful gift.
How do I wash these maternity biker shorts?
Machine wash on a gentle cycle with like colors. The fabric holds up well to regular washing. For longevity, air drying or tumble drying on low is recommended. Do not bleach. The Buttercloud fabric maintains its softness and stretch through repeated washes.
Maternity Biker Shorts — BONVIGOR Buttercloud Over the Belly