swim romper
Worth a lookShows a fragmented shelf (top 5 take 14% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Competition
Incredible14%top-5 click share — an open shelf
Growth
Incredible+113.9%90-day search growth — must beat 0% to launch
Avg price
Incredible$33.52avg listing price — sweet spot $15–$100
Price range
Incredible$17.09–$46.07cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Review moat
Good692.34avg incumbent reviews — the moat a new listing must climb
Brand share
Okay75%top-5 brand share — brands hold most of the demand
Market size
Bad$95K$95K/yr · 1.3M searches
Conversion
Bad0.2%search→purchase rate — share of searches ending in a sale
Returns
Bad13.9%return rate — above 5% kills the launch gate
According to Flapen's Amazon United States niche tracking, swim romper is a $95K/yr Amazon United States market (1.3M searches/yr). The top 5 brands hold 75% of demand. Demand peaks in May–Jun–Jul. Verdict: Worth a look — 58/100.
Data updated Jul 14, 2026 · scored weekly · How we score niches
swim romper market data
- Units sold / yr
- 3K–4K
- avg 0–100/product
- Revenue / yr
- $101K–$134K
- units × avg price
- Conversion rate
- 0.2%
- Avg BSR
- #708
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 98%
- Out of stock
- 2.8%
- Avg brand age
- 34 months
- Avg seller age
- 164 days
Competition & brand share
Clicks spread well past the top 5 (14% combined) — an open shelf where new products get seen.Brands
28 rising
Sellers
38
Top-5 brand share
75%
Top 20: 98%
Top-5 click share
14%
Top 20: 37%
Open market
21%
- Smismivo26%
- Tempt Me25%
- Summer Mae9%
- Charmo8%
- Arolina7%
- Maxine of Hollywood4%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +113.9% search growth over the last 90 days.Peak months: May, Jun, Jul · busiest ÷ quietest = 14.2×
Top swim romper search terms
- swim rompers for women229K/yr
- romper swimsuits for women193K/yr
- swim romper194K/yr
- romper swimsuit83K/yr
- swimsuit romper56K/yr
- womens swim romper57K/yr
- one piece swimsuit with shorts52K/yr
- swimsuit romper for women51K/yr
- romper bathing suit for women52K/yr
- plus size swim romper45K/yr
Top swim romper products on Amazon
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
Tempt Me Neon Color Block Black Romper One Piece Swimsuits with Short - Women Boyleg with Pockets Bathing Suit Modest Swimwear L
Tempt Me$39.374.3★725 rev
Tempt Me Romper Swimsuits - Women One Piece Bathing Suit with Shorts Boyleg Swimwear with Pockets 2026 Black M
Tempt Me$36.834.0★62 rev
Smismivo Swim Rompers for Women Tummy Control Swimsuits with Shorts Modest One Piece Slimming Long Torso Bathing Suits Built in Bra and Pockets Full Coverage Swim Dress Swimwear 2026 Black
Smismivo$34.194.5★195 rev
Charmo Scalloped Swim Romper One Piece Swimsuit for Women Tummy Control Bathing Suit Cute Swim Suit with Shorts Black S
Charmo$36.394.7★93 rev
Smismivo Swim Romper with Built in Bra and Pockets Swim Dress for Women Swimwear Modest One Piece Swimsuit with Shorts Ruffle Sleeve Full Coverage Bathing Suit Swimming Suits 2025 (GreenPattern)
Smismivo$37.334.3★402 rev
Newest
by launch date
Daci Black Romper Swimsuits for Women - Modest One Piece Swim Romper Casual Bathing Suit with Pockets M
Daci$30.726 rev
Charmo Scalloped Swim Romper One Piece Swimsuit for Women Tummy Control Bathing Suit Cute Swim Suit with Shorts Black S
Charmo$36.3993 rev
Charmo Cute Romper Swimsuit for Women Tummy Control One Piece Bathing Suit Modest Swimsuit with Shorts Swimwear Black M
Charmo$36.3093 rev
Charmo Womens Romper Swimsuits 2026 Tummy Control One Piece Swimsuit with Shorts Slimming Swimwear for Women Black M
Charmo$26.7269 rev
Arolina Swim Romper Swimsuits for Women Plus Size One Piece Modest Bathing Suit with Pockets Swimwear Blue Leaves
Arolina$35.31302 rev
Trending
90-day click momentumDaci Black Romper Swimsuits for Women - Modest One Piece Swim Romper Casual Bathing Suit with Pockets M
Daci$30.724.4★
Smismivo Swim Romper with Built in Bra and Pockets Swim Dress for Women Swimwear Modest One Piece Swimsuit with Shorts Ruffle Sleeve Full Coverage Bathing Suit Swimming Suits 2025 (GreenPattern)
Smismivo$37.334.3★
Charmo Scalloped Swim Romper One Piece Swimsuit for Women Tummy Control Bathing Suit Cute Swim Suit with Shorts Black S
Charmo$36.394.7★
Summer Mae Plus Size Swim Romper Women One Piece Swimsuit Blouson Bathing Suit with Pockets 2026 Modest Swimwear Purplish Red 18 Plus
Summer Mae$39.684.3★
Charmo Womens Romper Swimsuits 2026 Tummy Control One Piece Swimsuit with Shorts Slimming Swimwear for Women Black M
Charmo$26.724.1★
What buyers say about swim romper
What buyers praise and complain about, mined from review topics.What buyers love
“Flattering Fit”
“Extremely comfortable”
“Cute style”
“well-made”
“The pockets are a convenient”
“The color is pretty”
“The material is beautiful”
“Great value”
“The design is cute”
“Great for swimming”
What buyers complain about
“much larger”
“Dye Bled”
“Isnt very flattering on me”
“It was honestly a bit bulky and heavy”
“I need to size up due to bust size”
“poor leg hole quality”
“The fabric may be too thin and stretchy”
“Does not look like the picture”
“Hard to get on and off”
“The legs are a lot longer”
Top return reasons
Common questions
- Is swim romper profitable to sell on Amazon United States?
- The niche generates $95K/yr across 160 tracked products. 14 of 96 products launched in the last 360 days are still selling. 90-day search growth is +113.9%. Flapen's verdict: Worth a look (58/100).
- How competitive is the swim romper niche?
- 28 brands and 38 sellers compete. The top 5 products take 14% of clicks and top 5 brands hold 75% of demand.
- What do buyers complain about in swim romper?
- Top complaints mined from reviews: Size-Overall, Color, Shape/Style. The return rate is 13.9% — above our launch gate.
- When does demand for swim romper peak?
- Demand peaks in May–Jun–Jul; the busiest month runs 14.2× the quietest.
- What does it cost to enter the swim romper niche?
- Listings span $17.09–$46.07; the average listing price is $33.52 (sweet spot $15–$100). The average incumbent carries 692 reviews — the moat a new listing must climb.