square neck swimsuits for women
Worth a lookShows a fragmented shelf (top 5 take 10% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Competition
Incredible10%top-5 click share — an open shelf
Brand share
Incredible34%top-5 brand share — no brand owns this niche
Avg price
Incredible$29.81avg listing price — sweet spot $15–$100
Price range
Great$11.99–$79.19cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Great+95.6%90-day search growth — must beat 0% to launch
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Review moat
Okay1,659.16avg incumbent reviews — the moat a new listing must climb
Market size
Bad$26K$26K/yr · 246K searches
Conversion
Bad0.4%search→purchase rate — share of searches ending in a sale
Returns
Bad14.6%return rate — above 5% kills the launch gate
According to Flapen's Amazon United States niche tracking, square neck swimsuits for women is a $26K/yr Amazon United States market (246K searches/yr). The top 5 brands hold 34% 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
square neck swimsuits for women market data
- Units sold / yr
- 750–1K
- avg 0–100/product
- Revenue / yr
- $22K–$30K
- units × avg price
- Conversion rate
- 0.4%
- Avg BSR
- #207
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 94%
- Out of stock
- 1.1%
- Avg brand age
- 32 months
- Avg seller age
- 155 days
Competition & brand share
Clicks spread well past the top 5 (10% combined) — an open shelf where new products get seen.Brands
79 falling
Sellers
136
Top-5 brand share
34%
Top 20: 65%
Top-5 click share
10%
Top 20: 27%
Open market
65%
- SUUKSESS8%
- baleaf8%
- Speedo8%
- TyeSmo4%
- CUPSHE3%
- beautyin3%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +95.6% search growth over the last 90 days.Peak months: May, Jun, Jul · busiest ÷ quietest = 6.5×
Top square neck swimsuits for women search terms
- square neck swimsuits for women28K/yr
- one piece swimsuit teens25K/yr
- one piece teen swimsuit15K/yr
- backless swimsuit18K/yr
- one piece swimsuits for teens13K/yr
- athletic one piece swimsuit17K/yr
- one piece swimsuit women low back18K/yr
- one piece athletic swimsuit women20K/yr
- athletic one piece swimsuits for women22K/yr
- swimsuits for teens one piece14K/yr
Top square neck swimsuits for women 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
baleaf Womens Athletic Training Adjustable Strap One Piece Swimsuit Swimwear Bathing Suit Black 36
baleaf$31.204.4★7,771 rev
baleaf Womens Athletic Training Adjustable Strap One Piece Swimsuit Swimwear Bathing Suit Black 32
baleaf$31.564.4★7,771 rev
Jolefille Womens One Piece Swimsuit Tummy Control Modest Bathing Suit Teen Girls Swim Suit Cute Floral Swimwear
Jolefille$35.004.3★226 rev
Idgreatim Teen Athletic One Piece Swimsuit Size 13 14 Sport Quick Dry Racerback Bathing Suit Black Wide Straps Swimwear with Pads
Idgreatim$19.504.6★69 rev
Speedo Womens Swimsuit One Piece ProLT Super Pro Solid Adult
Speedo$22.604.1★10,932 rev
Newest
by launch date
SUUKSESS Women Sexy One Piece Swimsuit Tummy Control Square Neck Bathing Suit Retro Backless Swimwear (Brown White Polka Dots L)
SUUKSESS$32.66177 rev
Idgreatim Teen Athletic One Piece Swimsuit Size 13 14 Sport Quick Dry Racerback Bathing Suit Black Wide Straps Swimwear with Pads
Idgreatim$19.5069 rev
YOURUIKEY Girls Swimsuits One Piece Ruched Bathing Suit Halterneck Straps and Removable Bra Swimwear for Teen 13-14Y Blue
YOURUIKEY$18.8343 rev
TyeSmo Girls Swimsuit One Piece Swimsuits for Teen Girls Color Block Strap Teen Swimsuits for Girl 12-14 Drawstring Swimwear Bathing Suit for Teens 12-14 Girl Size 12 Swimsuit with Padded Dark Blue
TyeSmo$32.56192 rev
SUUKSESS Women Sexy One Piece Tummy Control Swimsuit Scoop Neck Slimming Swimwear 2025 Crisscross Backless Bathing Suit(Brown Medium)
SUUKSESS$36.00456 rev
Trending
90-day click momentumIdgreatim Teen Athletic One Piece Swimsuit Size 13 14 Sport Quick Dry Racerback Bathing Suit Black Wide Straps Swimwear with Pads
Idgreatim$19.504.6★
SUUKSESS Women Sexy One Piece Swimsuit Tummy Control Square Neck Bathing Suit Retro Backless Swimwear (Brown White Polka Dots L)
SUUKSESS$32.664.3★
Speedo Womens Swimsuit One Piece ProLT Super Pro Solid Adult
Speedo$22.604.1★
B2prity Womens One Piece Swimsuit Retro Square Neck Tummy Control Bathing Suits Ruched Modest Full Coverage Swimwear Black White
B2prity$35.604.4★
Cuddomper Girls Swimsiut Size 13-14 Green Teen One-Piece Bathing Suit with Tropical Print Mesh Cover Ups Adjustable Straps Cut Out Swimwear
Cuddomper$18.244.5★
What buyers say about square neck swimsuits for women
What buyers praise and complain about, mined from review topics.What buyers love
“Amazing fit”
“SO COMFORTABLE”
“Looks well made”
“The style is very flattering”
“Good material”
“Color is great”
“Good Value”
“The design is very elegant”
“The straps are great”
“Exactly like the picture”
What buyers complain about
“Too big”
“the strap broke within 10 minutes of use”
“it was large in the chest area”
“Poor quality”
“It turned grey”
“Got stretched out”
“very misleading”
“Cheap material”
“did not hold up”
“cut was not flattering”
Top return reasons
Common questions
- Is square neck swimsuits for women profitable to sell on Amazon United States?
- The niche generates $26K/yr across 261 tracked products. 34 of 109 products launched in the last 360 days are still selling. 90-day search growth is +95.6%. Flapen's verdict: Worth a look (58/100).
- How competitive is the square neck swimsuits for women niche?
- 79 brands and 136 sellers compete. The top 5 products take 10% of clicks and top 5 brands hold 34% of demand.
- What do buyers complain about in square neck swimsuits for women?
- Top complaints mined from reviews: Size-Overall, Strap/String Quality, Chest Fit. The return rate is 14.6% — above our launch gate.
- When does demand for square neck swimsuits for women peak?
- Demand peaks in May–Jun–Jul; the busiest month runs 6.5× the quietest.
- What does it cost to enter the square neck swimsuits for women niche?
- Listings span $11.99–$79.19; the average listing price is $29.81 (sweet spot $15–$100). The average incumbent carries 1,659 reviews — the moat a new listing must climb.