swimming cap
Skip itPrices mostly outside the sweet spot ($4.18–$12.26) — this niche doesn't clear our bar today.
Returns
Great1.3%return rate — above 5% kills the launch gate
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Conversion
Good6.3%search→purchase rate — share of searches ending in a sale
Market size
Good£389K£389K/yr · 1.0M searches
Competition
Okay60%top-5 click share — leaders hold, buyers still browse
Review moat
Okay2,821.11avg incumbent reviews — the moat a new listing must climb
Growth
Okay+2.3%90-day search growth — must beat 0% to launch
Avg price
Bad£6.06avg listing price — sweet spot $15–$100
Brand share
Bad95%top-5 brand share — brand-locked demand
Price range
Bad£4.18–£12.26cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, swimming cap is a £389K/yr Amazon United Kingdom market (1.0M searches/yr). The top 5 brands hold 95% of demand. Demand peaks in Sep. Verdict: Skip it — 46/100.
Data updated Jul 29, 2026 · scored weekly · How we score niches
swimming cap market data
- Units sold / yr
- 60K–80K
- avg 2,500–3,000/product
- Revenue / yr
- £364K–£485K
- units × avg price
- Conversion rate
- 6.3%
- Avg BSR
- #14
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 67%
- Out of stock
- 2.6%
- Avg brand age
- 34 months
- Avg seller age
- 176 days
Competition & brand share
The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.Brands
8 falling
Sellers
56
Top-5 brand share
95%
Top 20: 100%
Top-5 click share
60%
Top 20: 100%
Open market
3%
- Speedo63%
- ZONE316%
- Zoggs10%
- Limmys3%
- JIMJOOS2%
- Funzhan2%
- Open — no brand owns it (2 brands, 3%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +2.3% search growth over the last 90 days.Peak months: Sep · busiest ÷ quietest = 2.4×
Top swimming cap search terms
- swimming cap453K/yr
- swim cap94K/yr
- swimming cap women73K/yr
- swimming hat77K/yr
- swim caps for women47K/yr
- swim hat45K/yr
- swimming hat women33K/yr
- swimming caps30K/yr
- swim hat women22K/yr
- swimming cap men21K/yr
Top swimming cap 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 18 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Speedo Unisex-Adult Plain Moulded Silicone Swimming Cap | Swim Essentials | Hair Protection Training Aids
Speedo£5.064.2★4,184 rev
Speedo Unisex-Adult Plain Moulded Silicone Swimming Cap | Swim Essentials | Hair Protection Training Aids
Speedo£4.854.2★4,184 rev
Zoggs Unisex Adult Easy-Fit Silicone Swimming Cap - Black One Size
Zoggs£4.914.4★1,229 rev
ZONE3 Mens and Womens Silicone Swim Cap - 48g (Black) For Open Water and Pool Swimming
ZONE3£5.024.3★1,263 rev
Speedo Unisex Long Hair Cap | Swim Cap | Snag Free | Easy-On Ecstatic One Size
Speedo£6.744.2★2,845 rev
Newest
by launch date
ZONE3 Large Silicone Swim Cap - Designed For Long Hair Anti-tear Comfortable 48g
ZONE3£5.0288 rev
Speedo Unisex Long Hair Cap | Swim Cap | Snag Free | Easy-On Check One Size
Speedo£7.192,845 rev
Funzhan Silicone Swim Cap Adult Unisex for Long Hair Women Men (Pink)
Funzhan£4.18286 rev
JIMJOOS Kids Swimming Cap 314 Years - Silicone Swim Cap for Boys & Girls - Anti-Slip Stretchable Waterproof Swimming Hat - Durable Odour-Free Swim Hat with Protective Pouch (PINK 3-8 Years)
JIMJOOS£7.301,509 rev
Limmys Silicone Swim Cap for Adults Soft Stretch Non-Slip Swimming Cap for Women & Men Comfortable No-Headache Fit Chlorine-Resistant Secure Ear Seal Durable Latex-Free Silicone
Limmys£8.301,854 rev
Trending
90-day click momentum
Zoggs Unisex Silicone Swimming Cap Pink One Size UK
Zoggs£4.614.3★
ZONE3 Mens and Womens Silicone Swim Cap - 48g (Orange)
ZONE3£5.004.3★
Maru Silicone Swim Cap (Green) Smooth Easy-Fit Silicone Swimming Cap for Adults & Kids (One Size Fits All) Durable Swimming Hat for Speed Comfort & Chlorine Protection
MARU£5.564.2★
ZONE3 Large Silicone Swim Cap - Designed For Long Hair Anti-tear Comfortable 48g
ZONE3£5.024.2★
Speedo Unisex Long Hair Cap | Swim Cap | Snag Free | Easy-On Ecstatic One Size
Speedo£6.744.2★
What buyers say about swimming cap
What buyers praise and complain about, mined from review topics.What buyers love
“The fit is comfortable”
“Good quality, easy to put on”
“Great value”
“Looks good, easy to use”
“stretchy”
“Great quality and colour”
“did not rip so far”
“Does what its supposed to do”
“It adds a significant level of hair protection against the chlorine etc in the swimming pools”
“Feels comfortable”
What buyers complain about
“easily broken”
“Not fit for purpose”
“Awful quality”
“Not waterproof”
“also doesnt keep hair dry”
“Waste of money”
“so I was surprised by how restrictive it felt”
“Another product suffering from shrinkflation”
“Fits fine, doesnt make me swim any faster”
“the colour becomes transparent”
Top return reasons
Common questions
- Is swimming cap profitable to sell on Amazon United Kingdom?
- The niche generates £389K/yr across 18 tracked products. 90-day search growth is +2.3%. Flapen's verdict: Skip it (46/100).
- How competitive is the swimming cap niche?
- 8 brands and 56 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 95% of demand.
- What do buyers complain about in swimming cap?
- Top complaints mined from reviews: Durability, Size-Overall, Quality-Overall. The return rate is 1.3%.
- When does demand for swimming cap peak?
- Demand peaks in Sep; the busiest month runs 2.4× the quietest.
- What does it cost to enter the swimming cap niche?
- Listings span £4.18–£12.26; the average listing price is £6.06 (sweet spot $15–$100). The average incumbent carries 2,821 reviews — the moat a new listing must climb.