---
title: "Wellies Size 3 — £37K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/fashion/wellies-size-3"
last_updated: "2026-07-31T12:23:01.931Z"
locale: en
meta:
description: "Niche score 46/100 · £37K/yr market · 78K searches/yr · £13.01 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · £37K/yr market · 78K searches/yr · £13.01 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Wellies Size 3 — £37K/yr Amazon UK Niche (2026) - Flapen"
---
# **wellies size 3**
**Skip it**
Soft demand (-56.8% this quarter) — this niche doesn't clear our bar today.
Market size 9Growth 0Conversion 45Competition 97Returns 62Price range 59Avg price 58Brand share 77Review moat 65Quality gap 27
**Competition**
**Incredible****10%**
top-5 click share — an open shelf
**Brand share**
**Great****58%**
top-5 brand share — no brand owns this niche
**Review moat**
**Good****881.55**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Good****2.5%**
return rate — above 5% kills the launch gate
**Price range**
**Good****£6.65–£27.05**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Good****£13.01**
avg listing price — sweet spot $15–$100
**Conversion**
**Okay****3.6%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****£37K**
£37K/yr · 78K searches
**Growth**
**Bad****-56.8%**
90-day search growth — must beat 0% to launch
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=uk&signal=no_dominant_brand "Top brand's click share < 20%")
According to Flapen's Amazon United Kingdom niche tracking, wellies size 3 is a £37K/yr Amazon United Kingdom market (78K searches/yr). The top 5 brands hold 58% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 46/100.
Data updated Jul 23, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **wellies size 3 market data**
- **Units sold / yr**
- **3K–3K**
- avg 0–100/product
- **Revenue / yr**
- **£33K–£39K**
- units × avg price
- **Conversion rate**
- **3.6%**
- **Avg BSR**
- **#57**
- **Page quality**
- **0%**
- **Prime**
- **69%**
- **Sponsored**
- **77%**
- **Out of stock**
- **12.0%**
- **Avg brand age**
- **48 months**
- **Avg seller age**
- **189 days**
## **Competition & brand share**
Clicks spread well past the top 5 (10% combined) — an open shelf where new products get seen.
**Brands**
**34 **▲rising
**Sellers**
**36**
**Top-5 brand share**
**58%**
Top 20: 95%
**Top-5 click share**
**10%**
Top 20: 27%
**Open market**
**38%**
- Shoe Zone15% - Mountain Warehouse13% - DREAM PAIRS12% - A2Z 4 Kids10% - Savage Island6% - NorthSole5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -56.8% search growth over the last 90 days.
10K6KSpike '24Black Friday '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Sep, Oct, Nov · busiest ÷ quietest = 13.8×
[**Open Trend **](https://flapen.com/research/uk/fashion/wellies-size-3/trend)
## **Top wellies size 3 search terms**
- **girls wellies size 2**21K/yr-57.7%3.4% conv. - **boys wellies size 12**16K/yr-50.6%2.8% conv. - **boys wellies size 11**17K/yr-63.7%3.0% conv. - **girls wellies size 11**14K/yr-54.5%4.1% conv. - **boys wellies size 9**10K/yr-55.9%3.2% conv. [**All search terms **](https://flapen.com/research/uk/fashion/wellies-size-3/search-terms)
## **Top wellies size 3 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%1%£3662%£7333%£1K4%£1K101001K10K 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**Mountain Warehouse Plain Kids Wellies - Waterproof Soft Jersey Lined Wellington Boots Gripped Sole Boys & Girls - Spring Summer Rain School Outdoors Berry Junior Shoe Size 3**Mountain Warehouse**£13.13**4.6★2,230 rev](https://www.amazon.co.uk/dp/B09P5T3TXH) [2**Mountain Warehouse Plain Kids Wellies - Waterproof Soft Jersey Lined Wellington Boots Gripped Sole Boys & Girls - Spring Summer Rain School Outdoors Navy Kids Shoe Size 11**Mountain Warehouse**£12.04**4.6★2,230 rev](https://www.amazon.co.uk/dp/B07MG7KWCC) [3**Shoe Zone - Girls Multi Glitter Striped Welly - Size 2 UK - Multicolour**Shoe Zone**£8.68**4.7★52 rev](https://www.amazon.co.uk/dp/B0FL6SYX5W) [4**Shoe Zone - Girls Multi Rainbow Mermaid Glitter Welly - Size 11 Child UK - Multicolour**Shoe Zone**£9.49**4.6★771 rev](https://www.amazon.co.uk/dp/B0BJVC8G88) [5**Harry Bear Girls Wellies Animal Print Pink Size 11**Harry Bear**£14.18**4.6★129 rev](https://www.amazon.co.uk/dp/B0BLSQD2LM)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Savage Island Kids Rubber Wellington Boots Boys & Girls Waterproof Rain Boots with Adjustable Gusset Toddler & Childrens Unisex Wellies**Savage Island**£11.60**22 rev9mo ago](https://www.amazon.co.uk/dp/B0FS7FCH17) [**Shoe Zone - Girls Multi Glitter Striped Welly - Size 2 UK - Multicolour**Shoe Zone**£8.68**52 rev11mo ago](https://www.amazon.co.uk/dp/B0FL6SYX5W) [**Shoe Zone - Girls Blue Glitter Unicorn & Rainbows Welly - Size 11 Child UK - Blue**Shoe Zone**£8.48**69 rev11mo ago](https://www.amazon.co.uk/dp/B0FL6ZKL6S) [**A2Z 4 Kids Girls Rainbow Cloud Waterproof Wellington Boots**A2Z 4 Kids**£9.05**31 rev1y ago](https://www.amazon.co.uk/dp/B0FJ6D69TF) [**A2Z 4 Kids Girls Rainbow Cloud Waterproof Wellington Boots**A2Z 4 Kids**£8.37**31 rev1y ago](https://www.amazon.co.uk/dp/B0FJ6BX5VC)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Mountain Warehouse Plain Kids Wellies - Waterproof Soft Jersey Lined Wellington Boots Gripped Sole Boys & Girls - Spring Summer Rain School Outdoors Berry Junior Shoe Size 3**Mountain Warehouse**£13.13**4.6★**▲ 128%**](https://www.amazon.co.uk/dp/B09P5T3TXH) [**A2Z 4 Kids Girls Rainbow Cloud Waterproof Wellington Boots**A2Z 4 Kids**£9.05**4.8★**▲ 96%**](https://www.amazon.co.uk/dp/B0FJ6D69TF) [**Greentiming Kids Wellies for Girls Boys Light Up Glitter Waterproof Wellington Boots with Easy on Handles Toddler Wellies Size 7 UK Child Starry Sky**Greentiming**£13.70**4.5★**▲ 96%**](https://www.amazon.co.uk/dp/B0D6Z3PZ3W) [**Mountain Warehouse Plain Kids Wellies - Waterproof Soft Jersey Lined Wellington Boots Gripped Sole Boys & Girls - Spring Summer Rain School Outdoors Purple Kids Shoe Size 12**Mountain Warehouse**£13.49**4.6★**▲ 85%**](https://www.amazon.co.uk/dp/B07MCMVCTS) [**Savage Island Kids Rubber Wellington Boots Boys & Girls Waterproof Rain Boots with Adjustable Gusset Toddler & Childrens Unisex Wellies**Savage Island**£11.60**4.7★**▲ 80%**](https://www.amazon.co.uk/dp/B0FS7FCH17)
**~~View all trending →~~**
## **What buyers say about wellies size 3**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**18%
*“worth the price”*
**Size-Overall**15%
*“Fit is perfect”*
**Quality-Overall**13%
*“Excellent boots”*
**Comfort-Overall**10%
*“Really good and comfortable”*
**Lining Quality**9%
*“Lovely and warm with the fleece lining”*
**Durability**7%
*“Perfect kids wellies, durable and worth the money”*
**Water Resistance**4%
*“Waterproof good looking”*
**Ease Of Use**4%
*“easy to put on”*
**Strength**4%
*“Nice and sturdy”*
**Brightness/Shine/Glow**4%
*“Great fun as they light up”*
### **What buyers complain about **
**Size-Overall**50%
*“Inaccurate sizing very large”*
**Smell**8%
*“The type of plastic used smelled very strongly of herbs”*
**Ankle Support**8%
*“too tight around the ankle”*
**Ease Of Use**8%
*“VERY hard to get on”*
**Value For Money**4%
*“Not worth the price”*
**Durability**4%
*“He only had them for about 2 months. and they are not his primary shoes”*
**Quality-Overall**4%
*“I would not buy again nor recommend as they were expensive and bad quality”*
### **Top return reasons **
**Size-Overall**74%
**Width**5%
**Feet Fit**5%
**Color**2%
**Comfort-Overall**2%
**Quality-Overall**2%
**Advertised Vs Actual Product**2%
**Length**2%
**Brightness/Shine/Glow**1%
**Material Quality**1%
## **Common questions**
- **Is wellies size 3 profitable to sell on Amazon United Kingdom?**
- The niche generates £37K/yr across 212 tracked products. 0 of 28 products launched in the last 360 days are still selling. 90-day search growth is -56.8%. Flapen's verdict: Skip it (46/100).
- **How competitive is the wellies size 3 niche?**
- 34 brands and 36 sellers compete. The top 5 products take 10% of clicks and top 5 brands hold 58% of demand.
- **What do buyers complain about in wellies size 3?**
- Top complaints mined from reviews: Size-Overall, Smell, Ankle Support. The return rate is 2.5%.
- **When does demand for wellies size 3 peak?**
- Demand peaks in Sep–Oct–Nov; the busiest month runs 13.8× the quietest.
- **What does it cost to enter the wellies size 3 niche?**
- Listings span £6.65–£27.05; the average listing price is £13.01 (sweet spot $15–$100). The average incumbent carries 882 reviews — the moat a new listing must climb.
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