---
title: "Shark Costume — £77K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/home-garden/shark-costume"
last_updated: "2026-08-01T00:01:04.633Z"
locale: en
meta:
description: "Niche score 42/100 · £77K/yr market · 190K searches/yr · £18.82 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 42/100 · £77K/yr market · 190K searches/yr · £18.82 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Shark Costume — £77K/yr Amazon UK Niche (2026) - Flapen"
---
# **shark costume**
**Skip it**
Soft demand (-29.5% this quarter) — this niche doesn't clear our bar today.
Market size 19Growth 10Conversion 27Competition 54Returns 31Price range 68Avg price 85Brand share 59Review moat 89Quality gap 58
**Review moat**
**Great****221.35**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Great****£18.82**
avg listing price — sweet spot $15–$100
**Price range**
**Good****£9.04–£27.89**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Good****69%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Competition**
**Good****52%**
top-5 click share — leaders hold, buyers still browse
**Returns**
**Okay****4.5%**
return rate — above 5% kills the launch gate
**Conversion**
**Okay****2.1%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****£77K**
£77K/yr · 190K searches
**Growth**
**Bad****-29.5%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, shark costume is a £77K/yr Amazon United Kingdom market (190K searches/yr). The top 5 brands hold 69% of demand. Demand peaks in Mar–Oct–Nov. Verdict: Skip it — 42/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **shark costume market data**
- **Units sold / yr**
- **3K–4K**
- avg 0–100/product
- **Revenue / yr**
- **£56K–£75K**
- units × avg price
- **Conversion rate**
- **2.1%**
- **Avg BSR**
- **#614**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **92%**
- **Out of stock**
- **14.7%**
- **Avg brand age**
- **37 months**
- **Avg seller age**
- **200 days**
## **Competition & brand share**
The top 5 products take 52% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**18 **▲rising
**Sellers**
**23**
**Top-5 brand share**
**69%**
Top 20: 100%
**Top-5 click share**
**52%**
Top 20: 91%
**Open market**
**27%**
- TBGENIUS35% - FXICH13% - COOKY.D11% - FUNFOCUS6% - Poptrend5% - Generic4%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -29.5% search growth over the last 90 days.
20K15KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Mar, Oct, Nov · busiest ÷ quietest = 10.3×
[**Open Trend **](https://flapen.com/research/uk/home-garden/shark-costume/trend)
## **Top shark costume search terms**
- **shark costume**72K/yr-27.2%1.3% conv. - **shark costume kids**30K/yr-49.2%0.7% conv. - **inflatable shark costume**23K/yr+23.6%3.3% conv. - **kids shark costume**13K/yr-33.0%1.3% conv. - **shark costume adult**13K/yr-8.9%2.2% conv. - **shark outfit**7K/yr+4.8%1.4% conv. - **shark inflatable costume**7K/yr-17.8%5.5% conv. - **blow up shark costume**4K/yr+22.4%2.3% conv. - **inflatable shark costume kids**9K/yr-69.4%2.5% conv. - **kids inflatable shark costume**4K/yr-67.8%3.0% conv. [**All search terms **](https://flapen.com/research/uk/home-garden/shark-costume/search-terms)
## **Top shark costume 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.
0%10%£8K20%£15K30%£23K40%£31K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**TBGENIUS Shark Blanket Onesie Shark Hoodie for Adults and Kids Cozy Flannel Shark Costume Shark Sleeping Bag**TBGENIUS**£20.12**4.4★229 rev](https://www.amazon.co.uk/dp/B0CM31Z246) [2**FXICH Inflatable Costume Adult shark costume- Funny Dress Party Costume for Adult Halloween blue**FXICH**£19.06**4.6★1,394 rev](https://www.amazon.co.uk/dp/B09Q33PZ72) [3**TBGENIUS Shark Blanket Onesie Shark Hoodie for Adults Cozy Flannel Shark Costume Shark Sleeping Bag**TBGENIUS**£15.93**4.4★229 rev](https://www.amazon.co.uk/dp/B0CM2ZSRHL) [4**COOKY.D Kids Hooded Pyjamas Halloween Family Gaming Costume Shark 9-10 Yrs**COOKY.D**£19.07**4.4★66 rev](https://www.amazon.co.uk/dp/B0F9WK6M9W) [5**TBGENIUS Shark Blanket Onesie Shark Hoodie for Adults Cozy Flannel Shark Costume Shark Sleeping Bag**TBGENIUS**£18.03**4.4★229 rev](https://www.amazon.co.uk/dp/B0CM31RH2G)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**AMAMHAHAVA Adult Shark Onesie Costume Halloween Animal Cosplay Pyjamas Novelty Nightwear for Women and Men**AMAMHAHAVA**£20.20**36 rev7mo ago](https://www.amazon.co.uk/dp/B0GCCBXRJK) [**FUNFOCUS Inflatable Shark Costume Adult - Full Body Air Shark Costume Men Women Funny Fancy Dress Costume for Halloween Christmas Carnival Party (Inflatable Shark Flamingos Costume Adult)**FUNFOCUS**£20.28**7 rev7mo ago](https://www.amazon.co.uk/dp/B0G769KZQC) [**Inflatable Shark Costume Adult Inflatable Costumes Adult Size Full Body Blow up Costumes for Adults Women Men Inflatables Fancy Funny Suit for Halloween Christmas Carnival Party**FUNFOCUS**£17.87**21 rev9mo ago](https://www.amazon.co.uk/dp/B0FWKH3Z42) [**COOKY.D Kids Shark Costume Romper Hooded Carnival Pyjamas Outfit 2-3 Years**COOKY.D**£17.01**19 rev1y ago](https://www.amazon.co.uk/dp/B0FJWZSF8T) [**Inflatable Shark Costume Adult Inflatable pink shark Costumes Adult Size Full Body Blow up Costumes for Adults Women Men Inflatables Fancy Funny Suit for Halloween Christmas Carnival Party**FUNFOCUS**£17.47**10 rev1y ago](https://www.amazon.co.uk/dp/B0FGTRZRCY)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**TEDD Boys Pyjamas Shorts Set Shark Nightwear Cotton Toddler Clothes Short Sleeve Sleepwear 2 Piece Outfit for Kids Age 3-4 Years**TEDD**£9.04**4.4★**▲ 239%**](https://www.amazon.co.uk/dp/B0CYC47YTY) [**TBGENIUS Shark Blanket Onesie Shark Hoodie for Adults and Kids Cozy Flannel Shark Costume Shark Sleeping Bag**TBGENIUS**£20.12**4.4★**▲ 222%**](https://www.amazon.co.uk/dp/B0CM31Z246) [**AMAMHAHAVA Adult Shark Onesie Costume Halloween Animal Cosplay Pyjamas Novelty Nightwear for Women and Men**AMAMHAHAVA**£20.20**4.4★**▲ 220%**](https://www.amazon.co.uk/dp/B0GCCBXRJK) [**FUNFOCUS Inflatable Shark Costume Adult - Full Body Air Shark Costume Men Women Funny Fancy Dress Costume for Halloween Christmas Carnival Party (Inflatable Shark Flamingos Costume Adult)**FUNFOCUS**£20.28**4.7★**▲ 198%**](https://www.amazon.co.uk/dp/B0G769KZQC) [**COOKY.D Kids Hooded Pyjamas Halloween Family Gaming Costume Shark 9-10 Yrs**COOKY.D**£19.07**4.4★**▲ 194%**](https://www.amazon.co.uk/dp/B0F9WK6M9W)
**~~View all trending →~~**
## **What buyers say about shark costume**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**27%
*“Overall i would recommend as long as the sizing is correct for you as it came up abit small on my partner”*
**Value For Money**18%
*“Good value for money”*
**Warmth**11%
*“Cosy and warm”*
**Quality-Overall**9%
*“No complaints here”*
**Fun/Entertainment Experience**9%
*“Fun costume, easy to wear, fan works”*
**Soft Feel**5%
*“Very soft and comfortable to wear”*
**Comfort-Overall**4%
*“comfy”*
**Quick Drying**3%
*“Washes and drys quickly”*
**Gifting Purpose**3%
*“Christmas gift”*
**Ease Of Use**1%
*“Easy to wear”*
### **What buyers complain about **
**Size-Overall**33%
*“Terrible fit”*
**Material Quality**11%
*“Very light material take care when putting on”*
**Inflation/Deflation**11%
*“wont inflate fully”*
**Quality-Overall**6%
*“Poorly made and poorly fitting”*
**Heating**6%
*“Does get quite hot inside”*
**Stitch/Finish/Polish**4%
*“Reason for the 3 stars is that the product came damaged with a small hole on the sole of the right foot along the seam”*
**Thin**4%
*“Only issue is it's a little thin”*
### **Top return reasons **
**Size-Overall**75%
**Quality-Overall**5%
**Inflation/Deflation**2%
**Advertised Vs Actual Product**2%
**Stitch/Finish/Polish**2%
**Functionality-Overall**2%
**Material Quality**1%
**Comfort-Overall**1%
**Touch/Button Controls**1%
**Value For Money**1%
## **Common questions**
- **Is shark costume profitable to sell on Amazon United Kingdom?**
- The niche generates £77K/yr across 26 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -29.5%. Flapen's verdict: Skip it (42/100).
- **How competitive is the shark costume niche?**
- 18 brands and 23 sellers compete. The top 5 products take 52% of clicks and top 5 brands hold 69% of demand.
- **What do buyers complain about in shark costume?**
- Top complaints mined from reviews: Size-Overall, Material Quality, Inflation/Deflation. The return rate is 4.5%.
- **When does demand for shark costume peak?**
- Demand peaks in Mar–Oct–Nov; the busiest month runs 10.3× the quietest.
- **What does it cost to enter the shark costume niche?**
- Listings span £9.04–£27.89; the average listing price is £18.82 (sweet spot $15–$100). The average incumbent carries 221 reviews — the moat a new listing must climb.
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