---
title: "Bum Bag — £635K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/fashion/bum-bag"
last_updated: "2026-07-31T12:07:50.051Z"
locale: en
meta:
description: "Niche score 59/100 · £635K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 59/100 · £635K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Bum Bag — £635K/yr Amazon UK Niche (2026) - Flapen"
---
# **bum bag**
**Worth a look**
Shows demand growing +83.2% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 66Growth 84Conversion 45Competition 55Returns 84Price range 40Avg price 39Brand share 42Review moat 40Quality gap 50
**Growth**
**Great****+83.2%**
90-day search growth — must beat 0% to launch
**Returns**
**Great****1.5%**
return rate — above 5% kills the launch gate
**Market size**
**Good****£635K**
£635K/yr · 1.6M searches
**Competition**
**Good****52%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Good****4.5★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Okay****3.6%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Okay****80%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Okay****2,516.71**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Okay****£4.18–£22.07**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Okay****£10.73**
avg listing price — sweet spot $15–$100
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=uk&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United Kingdom niche tracking, bum bag is a £635K/yr Amazon United Kingdom market (1.6M searches/yr). The top 5 brands hold 80% of demand. Demand peaks in Jun–Jul–Aug. Verdict: Worth a look — 59/100.
Data updated Jul 23, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **bum bag market data**
- **Units sold / yr**
- **60K–80K**
- avg 1,500–2,000/product
- **Revenue / yr**
- **£644K–£858K**
- units × avg price
- **Conversion rate**
- **3.6%**
- **Avg BSR**
- **#23**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **91%**
- **Out of stock**
- **1.2%**
- **Avg brand age**
- **38 months**
- **Avg seller age**
- **173 days**
## **Competition & brand share**
The top 5 products take 52% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**17 **▼falling
**Sellers**
**29**
**Top-5 brand share**
**80%**
Top 20: 100%
**Top-5 click share**
**52%**
Top 20: 86%
**Open market**
**17%**
- szyanlai25% - Waterfly24% - hongking14% - MAXTOP14% - BAIYSFFG4% - G4GADGET3% - Open — no brand owns it (11 brands, 17%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +83.2% search growth over the last 90 days.
70K50KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jun, Jul, Aug · busiest ÷ quietest = 3.0×
[**Open Trend **](https://flapen.com/research/uk/fashion/bum-bag/trend)
## **Top bum bag search terms**
- **bum bag**454K/yr+91.4%3.0% conv. - **bumbags for ladies**272K/yr+146.9%2.2% conv. - **bumbag**224K/yr+18.1%2.7% conv. - **bumbags for men**95K/yr+326.4%3.1% conv. - **bum bags**86K/yr+75.3%2.4% conv. - **waist bag**88K/yr+61.8%1.1% conv. - **fanny pack for women**61K/yr+76.3%2.1% conv. - **fanny pack**67K/yr+39.9%2.3% conv. - **belt bag**47K/yr+59.4%0.3% conv. - **fanny pack for men**39K/yr+67.6%2.9% conv. [**All search terms **](https://flapen.com/research/uk/fashion/bum-bag/search-terms)
## **Top bum bag 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%4%£25K8%£51K12%£76K16%£102K101001K10K100K 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**Bumbags for Ladies Bum Bag Fanny Pack Men Women Waist Pack Lightweight Adjustable for Running Walking Hiking Jogging (Black)**szyanlai**£5.50**4.4★351 rev](https://www.amazon.co.uk/dp/B0DSPZ6KQ7) [2**Bumbags Waist Fanny Pack Ladies Fashion Bum Bag with Adjustable Belt for Sport Hiking Girls Women Men (Black)**hongking**£5.69**4.3★752 rev](https://www.amazon.co.uk/dp/B0D8K91FZ6) [3**Bum Bag for Ladies Women Men Girls Bumbags Waist Fanny Pack with Headphone Jack and Adjustable Belt for Sport Running Hiking Jogging Gifts for Men Women**szyanlai**£5.50**4.3★147 rev](https://www.amazon.co.uk/dp/B0F3XSJK4Y) [4**MAXTOP Large Bumbag Waist Fanny Pack Running Belt for Men Women Unisex Bum Bag with Headphone Jack and 4-Zipper Pockets Adjustable Belt for Travel Running Jogging Workout Hiking Gifts Black**MAXTOP**£8.08**4.4★39,468 rev](https://www.amazon.co.uk/dp/B07X3B5S2L) [5**Waterfly 3L Large Bum Bag: RFID Blocking Anti-Theft Waist Fanny Pack with Multi-Pocket for Men Women Travelling Walking Hiking**Waterfly**£22.06**4.8★145 rev](https://www.amazon.co.uk/dp/B0FQ2NZQH8)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Waterfly Bum Bag Fanny Pack: Small Waist Packs Bumbag with 30cm Extended Belt Fashion Anti-Theft Crossbody Chest Bag with RFID Blocking for Women Men Hiking Sport Running Walking Travel Black**Waterfly**£17.74**55 rev5mo ago](https://www.amazon.co.uk/dp/B0GLPBTZ31) [**Waterfly Bum Bag Fanny Pack: Small Waist Packs Bumbag with 30cm Extended Belt Fashion Anti-Theft Crossbody Chest Bag with RFID Blocking for Women Men Hiking Sport Running Walking Travel Peacock Blue**Waterfly**£17.70**55 rev5mo ago](https://www.amazon.co.uk/dp/B0GLP63Z4S) [**MAXTOP Black Bumbag Waist Fanny Pack for Men Women Bum Bag with 4-Zipper Pockets Travel Essentials for Outdoors Workout Hiking Running Cycling**MAXTOP**£12.07**16 rev7mo ago](https://www.amazon.co.uk/dp/B0G6SX5ZPM) [**Waterfly 3L Large Bum Bag: RFID Blocking Anti-Theft Waist Fanny Pack with Multi-Pocket for Men Women Travelling Walking Hiking**Waterfly**£22.06**145 rev8mo ago](https://www.amazon.co.uk/dp/B0FQ2NZQH8) [**Waterfly 3L Large Bum Bag: RFID Blocking Anti-Theft Waist Fanny Pack with Multi-Pocket for Men Women Travelling Walking Hiking**Waterfly**£22.07**145 rev8mo ago](https://www.amazon.co.uk/dp/B0FQ2JMNH3)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Waterfly Bum Bag Fanny Pack: Small Waist Packs Bumbag with 30cm Extended Belt Fashion Anti-Theft Crossbody Chest Bag with RFID Blocking for Women Men Hiking Sport Running Walking Travel Black**Waterfly**£17.74**4.8★**▲ 69%**](https://www.amazon.co.uk/dp/B0GLPBTZ31) [**Waterfly 3L Large Bum Bag: RFID Blocking Anti-Theft Waist Fanny Pack with Multi-Pocket for Men Women Travelling Walking Hiking**Waterfly**£22.06**4.8★**▲ 69%**](https://www.amazon.co.uk/dp/B0FQ2NZQH8) [**Waterfly Bum Bag Fanny Pack: Small Waist Packs Bumbag with 30cm Extended Belt Fashion Anti-Theft Crossbody Chest Bag with RFID Blocking for Women Men Hiking Sport Running Walking Travel Peacock Blue**Waterfly**£17.70**4.8★**▲ 68%**](https://www.amazon.co.uk/dp/B0GLP63Z4S) [**Waterfly 3L Large Bum Bag: RFID Blocking Anti-Theft Waist Fanny Pack with Multi-Pocket for Men Women Travelling Walking Hiking**Waterfly**£22.07**4.8★**▲ 68%**](https://www.amazon.co.uk/dp/B0FQ2JMNH3) [**MAXTOP Black Bumbag Waist Fanny Pack for Men Women Bum Bag with 4-Zipper Pockets Travel Essentials for Outdoors Workout Hiking Running Cycling**MAXTOP**£12.07**4.7★**▲ 62%**](https://www.amazon.co.uk/dp/B0G6SX5ZPM)
**~~View all trending →~~**
## **What buyers say about bum bag**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**20%
*“Good quality bag”*
**Size-Overall**10%
*“It fits more than expected”*
**Pockets/Compartments**9%
*“Lots of pockets”*
**Advertised Vs Actual Product**8%
*“Looks exactly as pictures”*
**Value For Money**7%
*“Good price”*
**Comfort-Overall**6%
*“very comfortable”*
**Storage Capacity**5%
*“Plenty room”*
**Weight Light**4%
*“This fanny pack is thin and lightweight enough, so I managed to squeeze it into my hand luggage”*
**Ease Of Use**3%
*“Easy to use”*
**Portability**3%
*“Adaptable”*
### **What buyers complain about **
**Strap/String Quality**11%
*“after one week both straps came unstitched from the bag”*
**Size-Overall**9%
*“Small”*
**Durability**8%
*“It broke”*
**Quality-Overall**7%
*“Poor quality”*
**Stitch/Finish/Polish**6%
*“stitching coming undone”*
**Zipper Quality**6%
*“its full of zips that are really hard to open”*
**Value For Money**5%
*“a tad expensive”*
**Water Resistance**3%
*“does not cope in the rain”*
**Strength**3%
*“It doesn't hold as much as would like”*
**Color**2%
*“The colour is poor”*
### **Top return reasons **
**Size-Overall**54%
**Quality-Overall**8%
**Zipper Quality**6%
**Waist Fit**5%
**Color**4%
**Strap/String Quality**3%
**Material Quality**3%
**Weight Heavy**1%
**Strength**1%
**Advertised Vs Actual Product**1%
## **Common questions**
- **Is bum bag profitable to sell on Amazon United Kingdom?**
- The niche generates £635K/yr across 35 tracked products. 2 of 6 products launched in the last 360 days are still selling. 90-day search growth is +83.2%. Flapen's verdict: Worth a look (59/100).
- **How competitive is the bum bag niche?**
- 17 brands and 29 sellers compete. The top 5 products take 52% of clicks and top 5 brands hold 80% of demand.
- **What do buyers complain about in bum bag?**
- Top complaints mined from reviews: Strap/String Quality, Size-Overall, Durability. The return rate is 1.5%.
- **When does demand for bum bag peak?**
- Demand peaks in Jun–Jul–Aug; the busiest month runs 3.0× the quietest.
- **What does it cost to enter the bum bag niche?**
- Listings span £4.18–£22.07; the average listing price is £10.73 (sweet spot $15–$100). The average incumbent carries 2,517 reviews — the moat a new listing must climb.
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