Maternity Swimsuit
Worth a lookShows a fragmented shelf (top 5 take 18% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Competition
Incredible18%top-5 click share — an open shelf
Growth
Incredible+112.4%90-day search growth — must beat 0% to launch
Avg price
Incredible$32.82avg listing price — sweet spot $15–$100
Price range
Great$6.43–$42.05cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good678.02avg incumbent reviews — the moat a new listing must climb
Market size
Good$550K$550K/yr · 4.0M searches
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Brand share
Okay85%top-5 brand share — brands hold most of the demand
Conversion
Bad0.4%search→purchase rate — share of searches ending in a sale
Returns
Bad11.3%return rate — above 5% kills the launch gate
Is maternity swimsuit profitable on Amazon?
According to Flapen's Amazon United States niche tracking, maternity swimsuit is a $550K/yr Amazon United States market (4.0M searches/yr). The top 5 brands hold 85% of demand. Demand peaks in Apr–May–Jun–Jul. Verdict: Worth a look — 60/100.
Data updated Jul 14, 2026 · scored weekly · How we score niches
maternity swimsuit market size & sales
Units sold, revenue, conversion and listing quality across the tracked shelf.- Units sold / yr
- 15K–20K
- avg 100–250/product
- Revenue / yr
- $492K–$656K
- units × avg price
- Conversion rate
- 0.4%
- Avg BSR
- #6,216
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 96%
- Out of stock
- 0.8%
- Avg brand age
- 37 months
- Avg seller age
- 167 days
Competition: brands, sellers & click share
Clicks spread well past the top 5 (18% combined) — an open shelf where new products get seen.Brands
17 falling
Sellers
26
Top-5 brand share
85%
Top 20: 100%
Top-5 click share
18%
Top 20: 48%
Open market
11%
- Summer Mae49%
- Charmo19%
- SUMMERSUNSHINE7%
- CUPSHE6%
- Century Star5%
- GINKANA4%
- Open — no brand owns it (11 brands, 11%)
maternity swimsuit demand & seasonality
Weekly Amazon search volume, last 104 weeks — +112.4% search growth over the last 90 days.Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 10.0×
Top maternity swimsuit search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- maternity swimsuit2.2M/yr
- maternity bathing suit416K/yr
- maternity bikini160K/yr
- maternity swim169K/yr
- maternity swimsuit two piece122K/yr
- pregnancy swimsuits for women86K/yr
- maternity swim dress77K/yr
- maternity bathing suits for women119K/yr
- plus size maternity swimsuit79K/yr
- nursing swimsuit70K/yr
Top maternity swimsuit products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Summer Mae Maternity Swimsuit One Piece Bathing Suit Button Neck Cross Back Black M
Summer Mae$35.704.4★3,072 rev
Summer Mae Maternity High Waist Bikini Swimsuit Two Piece Ruffled Hem Cute Bathing Suit Floral Pregnancy Swimwear Dewdrop Blooms Large
Summer Mae$38.604.4★2,323 rev
Summer Mae Maternity Swimsuit V-Neck One Piece Swimsuit Ruffled Lace Up Monokini Black M
Summer Mae$35.834.6★1,861 rev
Charmo Ruffle Maternity Swimwear Twist Front Cutout Pregnancy Swimsuits for Women Padded V Neck Maternity Swim Dress Black L
Charmo$30.174.8★327 rev
Summer Mae Maternity High Waist Swimsuit Ruffle Hem Bikini Bathing Suit Shirred Bandeau Two Piece Pregnancy Swimwear Black X-Large
Summer Mae$42.054.5★996 rev
Newest
by launch date
Summer Mae Ribbed Maternity One Piece Swimsuit Dress Wrap Bathing Suit with Built-in Pocket Short Swimwear Tie Knot Skirt Black 10
Summer Mae$35.0759 rev
Summer Mae Ribbed Maternity One Piece Swimsuit Dress Wrap Bathing Suit with Built-in Pocket Short Swimwear Tie Knot Skirt Black 12
Summer Mae$35.5559 rev
Summer Mae Ribbed Maternity One Piece Swimsuit Ruffle Wood Ears Bathing Suit Scoop Neck Pregnancy Swimwear Black 14
Summer Mae$36.0131 rev
Summer Mae Ribbed Maternity One Piece Swim Dress Pregnancy Swimsuit with Built-in Bottom Swimwear Tie Knot Skirt Bathing Suit Dark 16
Summer Mae$37.25170 rev
GINKANA Maternity Tankinis Swimsuits Ruffle Hem Pregnancy Bathing Suits 2 Pieces Swimwear Flower Print Swim Suits Green Floral XL
GINKANA$33.65177 rev
Trending
90-day click momentumSummer Mae Maternity Swimsuit One Piece Bathing Suit Button Neck Cross Back Black XL
Summer Mae$36.614.4★
GINKANA Maternity Tankinis Swimsuits Ruffle Hem Pregnancy Bathing Suits 2 Pieces Swimwear Flower Print Swim Suits Green Floral XL
GINKANA$33.654.2★
Summer Mae Maternity Two-Piece Swimsuit Tankini with Pocket Cross Back Pregnancy Bathing Suit Sporty Swimwear Solitary Silhouette Bloom 12
Summer Mae$38.124.0★
Maternity One Piece Swimsuits for Women - Ribbed Cutout High Waist Maternity Bathing Suits Tie Knot Pregnancy Swimwear 2026 Black L
Century Star$23.724.4★
Summer Mae Ribbed Maternity One Piece Swimsuit Dress Wrap Bathing Suit with Built-in Pocket Short Swimwear Tie Knot Skirt Black 12
Summer Mae$35.554.5★
What reviews say buyers love and hate about maternity swimsuit
What buyers praise and complain about, mined from review topics.What buyers love
“The fit is flattering”
“So comfortable”
“The stretchiness is great”
“Very flattering”
“the material is comfortable”
“Good quality and great for the pool”
“Color is cute”
“Very soft and thick”
“I like that it has adjustable straps”
“price was great”
What buyers complain about
“Too small”
“Not for the large breasted women”
“Not the right color”
“Broke after one wear”
“Trash”
“Large seams hurt”
“I feel like the material is kind of heavy”
“The straps are not adjustable”
“So uncomfortable”
“Did not fit as advertised in the size chart”
Top return reasons
Common maternity swimsuit questions
- Is maternity swimsuit profitable to sell on Amazon United States?
- The niche generates $550K/yr across 112 tracked products. 11 of 25 products launched in the last 360 days are still selling. 90-day search growth is +112.4%. Flapen's verdict: Worth a look (60/100).
- How competitive is the maternity swimsuit niche?
- 17 brands and 26 sellers compete. The top 5 products take 18% of clicks and top 5 brands hold 85% of demand.
- What do buyers complain about in maternity swimsuit?
- Top complaints mined from reviews: Size-Overall, Chest Fit, Color. The return rate is 11.3% — above our launch gate.
- When does demand for maternity swimsuit peak?
- Demand peaks in Apr–May–Jun–Jul; the busiest month runs 10.0× the quietest.
- What does it cost to enter the maternity swimsuit niche?
- Listings span $6.43–$42.05; the average listing price is $32.82 (sweet spot $15–$100). The average incumbent carries 678 reviews — the moat a new listing must climb.