shower cap
Skip itPrices mostly outside the sweet spot ($2.50–$11.54) — this niche doesn't clear our bar today.
Returns
Incredible0.3%return rate — above 6% kills the launch gate
Conversion
Great11.2%search→purchase rate — share of searches ending in a sale
Market size
Good£559K£559K/yr · 1.0M searches
Brand share
Good71%top-5 brand share — brands hold most of the demand
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Review moat
Okay2,616.76avg incumbent reviews — the moat a new listing must climb
Competition
Okay68%top-5 click share — leaders hold, buyers still browse
Growth
Bad-8.3%90-day search growth — must beat 0% to launch
Avg price
Bad£4.92avg listing price — sweet spot $15–$100
Price range
Bad£2.50–£11.54cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, shower cap is a £559K/yr Amazon United Kingdom market (1.0M searches/yr). The top 5 brands hold 71% of demand. Verdict: Skip it — 49/100.
Data updated Jul 18, 2026 · scored weekly · How we score niches
Market data
- Units sold / yr
- 100K–125K
- avg 4,000–5,000/product
- Revenue / yr
- £492K–£615K
- units × avg price
- Launch success
- —
- 0 of 0 new (360d)
- Conversion rate
- 11.2%
- Avg BSR
- #17
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 76%
- Out of stock
- 0.3%
- Avg brand age
- 29 months
- Avg seller age
- 191 days
Competition
The top 5 products take 68% of clicks — established leaders, but buyers still shop beyond them.Brands
15 falling
Sellers
25
Top-5 brand share
71%
Top 20: 100%
Top-5 click share
68%
Top 20: 100%
Open market
24%
- N Nimxy28%
- SARG17%
- Yiapinn13%
- Aquior8%
- Kitsch6%
- Ailiver5%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -8.3% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.3×
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 17 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Nimxy Pack of 4 Shower Cap Reusable Shower Caps For Women & Men - Waterproof with Elastic Band & Soft Lining (Dotted)
N Nimxy£2.544.5★2,037 rev
SARG Premium Double Layer Shower Cap for Women with Unique Flower Design- Reusable Shower Cap for Hair - Waterproof Plastic Cap - Shower Caps for Long Short and Curly Hairs
SARG£3.934.5★1,269 rev
Shower Cap Elastic Band Double Layers Waterproof Shower Caps With Ruffled Edge Covering Ears Keeping Hair Dry Kitchen Oil-proof Cap for Girls and Women 2PCS
Yiapinn£4.264.5★1,931 rev
Kitsch Luxury Shower Caps for Women Reusable Waterproof - Flexi Satin Lined Large Wide Shower Cap for Women & Men Adjustable Stylish Hair Cap for Shower For Long & Short Hair - Terracotta Checker
Kitsch£11.544.2★14,100 rev
Shower Caps for Women Men Reusable Shower Hat Bath Caps with Elastic Band Waterproof Bath Cap Shower Caps for Women Long Hair (3 PCS)
Ailiver£2.504.5★800 rev
Newest
by launch date
Kryzulax 50Pcs Shower Caps Disposable Plastic Elastic Bath Cap Waterproof Shower Cap Waterproof Hair Caps for Home Use Hotel Spa and Hair Salon(42CM)
Kryzulax£3.58599 rev
Years Calm Shower Caps For Women Reusable WaterproofPattern And Solid Color Dual-Layer Design For Dual-Layer UsableProtects Hair In Shower Spa Cooking Clean & Travel (Pink One Size)
Years calm£6.312,457 rev
SMUG Shower Cap | Waterproof Shower Cap with Elastic Lining | Three Prints Available | Showers Cooking Spa Salon Sleeping Makeup | Shower Caps For Women UK Long Hair Short Hair | Duck
SMUG£6.79644 rev
Double Layer Shower Cap for Women Waterproof Reusable Elastic Band Ruffled Edges Covering Ears for Long Short & Curly Hair (Blue Bird)
YUNYU£3.48543 rev
Kitsch Luxury Shower Caps for Women Reusable Waterproof - Flexi Satin Lined Large Wide Shower Cap for Women & Men Adjustable Stylish Hair Cap for Shower For Long & Short Hair - Terracotta Checker
Kitsch£11.5414,100 rev
Trending
90-day click momentumSMUG Shower Cap | Waterproof Shower Cap with Elastic Lining | Three Prints Available | Showers Cooking Spa Salon Sleeping Makeup | Shower Caps For Women UK Long Hair Short Hair | Duck
SMUG£6.793.8★
Reusable Waterproof Shower Cap - Double Thick Leopard Red Border - Ideal for Bath & Shower - (1 Piece)
Jagowa£3.504.4★
SARG Premium Double Layer Shower Cap for Women with Unique Flower Design- Reusable Shower Cap for Hair - Waterproof Plastic Cap - Shower Caps for Long Short and Curly Hairs
SARG£3.934.5★
Kitsch Luxury Shower Caps for Women Reusable Waterproof - Flexi Satin Lined Large Wide Shower Cap for Women & Men Adjustable Stylish Hair Cap for Shower For Long & Short Hair - Terracotta Checker
Kitsch£11.544.2★
Double Layer Shower Cap for Women Waterproof Reusable Elastic Band Ruffled Edges Covering Ears for Long Short & Curly Hair (Blue Bird)
YUNYU£3.484.5★
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“It seems well made”
“Good Value”
“Good fit”
“Just what I was looking for”
“completely waterproof”
“Easy to use”
“Durable”
“it keeps hair completely dry during showers”
“Cute design”
“They stretch big aswell so its a bonus”
What buyers complain about
“Not fit for purpose”
“Awful quality”
“very tight elastic”
“Would not say reusable for a long time”
“Colour pink inconsistent dying”
“No good for anyone with long hair”
“the inside gets wet”
“not worth the money”
“Im struggling to get on with this”
“I have thick hair, it wouldn't stay on in the shower”
Top return reasons
Common questions
- Is shower cap profitable to sell on Amazon United Kingdom?
- The niche generates £559K/yr across 17 tracked products. 90-day search growth is -8.3%. Flapen's verdict: Skip it (49/100).
- How competitive is the shower cap niche?
- 15 brands and 25 sellers compete. The top 5 products take 68% of clicks and top 5 brands hold 71% of demand.
- What do buyers complain about in shower cap?
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Stretchability/Expandability/Elasticity. The return rate is 0.3%.
- When does demand for shower cap peak?
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- What does it cost to enter the shower cap niche?
- Listings span £2.50–£11.54; the average listing price is £4.92 (sweet spot $15–$100). The average incumbent carries 2,617 reviews — the moat a new listing must climb.
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