---
title: "Envelopes — £627K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/stationery-office-supplies/envelopes"
last_updated: "2026-07-31T13:42:41.063Z"
locale: en
meta:
description: "Niche score 51/100 · £627K/yr market · 757K searches/yr. Pricing outside the sweet spot ($4.79 avg) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 51/100 · £627K/yr market · 757K searches/yr. Pricing outside the sweet spot ($4.79 avg) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Envelopes — £627K/yr Amazon UK Niche (2026) - Flapen"
---
# **envelopes**
**Worth a look**
Shows low returns (0.2%), but pricing outside the sweet spot ($4.79 avg) keeps it on the watch list.
Market size 65Growth 23Conversion 98Competition 43Returns 99Price range 13Avg price 13Brand share 40Review moat 49Quality gap 42
**Returns**
**Incredible****0.2%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****17.3%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Good****£627K**
£627K/yr · 757K searches
**Review moat**
**Okay****1,571.74**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Okay****59%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****81%**
top-5 brand share — brands hold most of the demand
**Growth**
**Bad****-4.8%**
90-day search growth — must beat 0% to launch
**Avg price**
**Bad****£4.79**
avg listing price — sweet spot $15–$100
**Price range**
**Bad****£1.32–£17.11**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, envelopes is a £627K/yr Amazon United Kingdom market (757K searches/yr). The top 5 brands hold 81% of demand. Verdict: Worth a look — 51/100.
Data updated Jul 29, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **envelopes market data**
- **Units sold / yr**
- **125K–150K**
- avg 8,000–10,000/product
- **Revenue / yr**
- **£599K–£719K**
- units × avg price
- **Conversion rate**
- **17.3%**
- **Avg BSR**
- **#76**
- **Page quality**
- **0%**
- **Prime**
- **91%**
- **Sponsored**
- **87%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **38 months**
- **Avg seller age**
- **179 days**
## **Competition & brand share**
The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**15 **▲rising
**Sellers**
**57**
**Top-5 brand share**
**81%**
Top 20: 100%
**Top-5 click share**
**59%**
Top 20: 97%
**Open market**
**15%**
- Postmaster29% - Blake18% - FIRST CHOICE KAYA17% - TRIPLE PRIO9% - Pop7% - Officely4% - Open — no brand owns it (9 brands, 15%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -4.8% search growth over the last 90 days.
18K13KSpike '24Spike '25Black Friday '25Holiday '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/uk/stationery-office-supplies/envelopes/trend)
## **Top envelopes search terms**
- **envelopes**487K/yr-3.0%7.8% conv. - **envelope**49K/yr-6.4%4.5% conv. - **envelopes peel and seal**65K/yr-7.8%13.6% conv. - **white envelopes**38K/yr-7.8%11.5% conv. - **dl envelopes**28K/yr-14.4%14.1% conv. - **envelopes letter size**21K/yr+0.2%14.2% conv. - **letter envelopes**13K/yr+0.5%9.9% conv. - **dl envelopes peel and seal**11K/yr-20.4%16.8% conv. - **white envelopes peel and seal**11K/yr-21.0%17.9% conv. - **envelope dl**4K/yr-10.8%15.2% conv. [**All search terms **](https://flapen.com/research/uk/stationery-office-supplies/envelopes/search-terms)
## **Top envelopes 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%5%£31K10%£63K15%£94K20%£125K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted
All 23 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**FIRST CHOICE KAYA 25 50 100 DL White Mailing Envelopes Self Seal for Posting mailing Home Office and Ecommerce Peel and Seal (100)**FIRST CHOICE KAYA**£5.70**4.5★1,302 rev](https://www.amazon.co.uk/dp/B09YVGPKLK) [2**Postmaster Envelopes DL Peel & Seal 100GSM White Paper - 50 Pack**Postmaster**£2.71**4.7★830 rev](https://www.amazon.co.uk/dp/B0C69YQJQ7) [3**Postmaster Envelopes DL Peel & Seal 100GSM White Paper - 100 Pack**Postmaster**£3.24**4.7★520 rev](https://www.amazon.co.uk/dp/B0D33RDJ64) [4**Blake Purely Everyday DL 110 x 220 mm 90 gsm Self Seal Wallet Envelopes (13882/100 PR) White - 100 Count ( Pack of 1)**Blake**£4.52**4.6★4,788 rev](https://www.amazon.co.uk/dp/B01G5547G6) [5**White Envelopes DL 50 Pack - 80gsm Letter Peel and Seal - Strong Envelopes for Business Office Home Cards and Everyday Mailing**Pop**£2.08**4.2★64 rev](https://www.amazon.co.uk/dp/B0FTGDD5RP)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**50 pcs Envelopes Self Seal 120 GSM White 12.5 x 17.5 cm**Maxmoc**£5.88**14 rev4mo ago](https://www.amazon.co.uk/dp/B0GQRTPCZN) [**White Envelopes DL 50 Pack - 80gsm Letter Peel and Seal - Strong Envelopes for Business Office Home Cards and Everyday Mailing**Pop**£2.08**64 rev10mo ago](https://www.amazon.co.uk/dp/B0FTGDD5RP) [**50-Pack Compact Self-Sealing Brown Paper Envelopes for Organizing Seeds Cash and Small Valuables**Eclovane**£3.36**4 rev11mo ago](https://www.amazon.co.uk/dp/B0FNR4KBGX) [**RFE Pack of 100 - DL White Mailing Envelopes Self Seal for Posting mailing Home Office Ecommerce and Business 80gsm 110 x 220mm**RFE**£8.29**0 rev1y ago](https://www.amazon.co.uk/dp/B0DTS2LVP7) [**Officely C6 Self Seal Wallet Envelopes 90 GSM 114mm x 162mm White - Pack of 25**Officely**£2.19**33 rev2y ago](https://www.amazon.co.uk/dp/B0D8M783YX)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**50 pcs Envelopes Self Seal 120 GSM White 12.5 x 17.5 cm**Maxmoc**£5.88**4.0★**▲ 378%**](https://www.amazon.co.uk/dp/B0GQRTPCZN) [**Officely C6 Self Seal Wallet Envelopes 90 GSM 114mm x 162mm White - Pack of 25**Officely**£2.19**4.4★**▲ 372%**](https://www.amazon.co.uk/dp/B0D8M783YX) [**RFE Pack of 100 - DL White Mailing Envelopes Self Seal for Posting mailing Home Office Ecommerce and Business 80gsm 110 x 220mm**RFE**£8.29**0.0★**▲ 371%**](https://www.amazon.co.uk/dp/B0DTS2LVP7) [**Blake Purely Everyday C5 229 x 162 mm 80 gsm Gummed Pocket Envelopes (13848/50 PR) Manilla - Pack of 50**Blake**£2.44**4.6★**▲ 146%**](https://www.amazon.co.uk/dp/B00LY25CMY) [**White Envelopes DL 50 Pack - 80gsm Letter Peel and Seal - Strong Envelopes for Business Office Home Cards and Everyday Mailing**Pop**£2.08**4.2★**▲ 136%**](https://www.amazon.co.uk/dp/B0FTGDD5RP)
**~~View all trending →~~**
## **What buyers say about envelopes**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**29%
*“The envelopes feel good enough quality to me for a birthday or Christmas card”*
**Value For Money**22%
*“Good price”*
**Advertised Vs Actual Product**18%
*“Exactly as stated”*
**Size-Overall**8%
*“Good size”*
**Adhesion/Stickiness**4%
*“they stick well”*
**Paper Quality**4%
*“Good substantial paper”*
**Ease Of Use**2%
*“Easy to use”*
**Office Usability**1%
*“Ideal for bills”*
**Strength**1%
*“Good quality and sturdy”*
**Security**1%
*“helping documents feel more protected during posting”*
### **What buyers complain about **
**Adhesion/Stickiness**21%
*“terrible adhesive”*
**Quality-Overall**19%
*“These envelopes are very poor quality”*
**Thickness**13%
*“not the thickest”*
**Size-Overall**5%
*“non-standard size”*
**Paper Quality**4%
*“that shows in the thickness of the paper so are a lower quality”*
**Strength**4%
*“getting better quality as these are flimsy”*
**Value For Money**3%
*“No better than cheap supermarket ones at half the price”*
**Thin**3%
*“Very thin”*
**Advertised Vs Actual Product**2%
*“Only provided 19 instead of the 20 advertised”*
**Flexibility**1%
*“Review of A4 do not bend envelopes”*
### **Top return reasons **
**Size-Overall**73%
**Quality-Overall**6%
**Advertised Vs Actual Product**5%
**Thin**4%
**Adhesion/Stickiness**3%
**Compatibility-Overall**2%
**Strength**2%
**Defective Material/Parts**1%
**Functionality-Overall**1%
**Material Quality**1%
## **Common questions**
- **Is envelopes profitable to sell on Amazon United Kingdom?**
- The niche generates £627K/yr across 23 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -4.8%. Flapen's verdict: Worth a look (51/100).
- **How competitive is the envelopes niche?**
- 15 brands and 57 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 81% of demand.
- **What do buyers complain about in envelopes?**
- Top complaints mined from reviews: Adhesion/Stickiness, Quality-Overall, Thickness. The return rate is 0.2%.
- **When does demand for envelopes peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the envelopes niche?**
- Listings span £1.32–£17.11; the average listing price is £4.79 (sweet spot $15–$100). The average incumbent carries 1,572 reviews — the moat a new listing must climb.
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