C5 Window Envelopes
brand-locked demand (top 5 brands take 100% of clicks) — C5 Window Envelopes doesn't clear our bar today.
Flapen Score
Is C5 Window Envelopes profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, C5 Window Envelopes is a £26K/yr Amazon United Kingdom market (9K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 37/100.
C5 Window Envelopes: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved -24.1% over the last 90 days and 23.5% of searches end in a purchase.
£26K
revenue / yr
Who owns the niche?
The top 5 brands hold 100% of demand, so 0% of the market is open.
0%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.5★ — the gap to enter on.
0/100
page quality · 9 products
Top C5 Window Envelopes products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
Postmaster C5 Window Envelopes 229 x 162 mm A5 90 GSM Self Seal White Bulk Business Pack of 500
- Price
- £14.62
- Rating
- 4.6/5
- Reviews
- 315
- Age
- 3y ago
Q-Connect C5 Envelopes Window Pocket Self Seal 90 gsm White (Pack of 500)
- Price
- £14.95
- Rating
- 4.6/5
- Reviews
- 62
- Age
- 19y ago
GP Globe Packaging 50 x C5 A5 White Window Self Seal Paper Envelopes (Size: 229x164mm) - Printer Safe & Fully Opaque - Security Mailing Envelopes for Home Office & Business Use
- Price
- £5.43
- Rating
- 4.6/5
- Reviews
- 1,659
- Age
- 14y ago
Postmaster A5 C5 Window Envelopes 229 x 162 mm 90 GSM Self Seal White 200 Pack
- Price
- £8.02
- Rating
- 4.6/5
- Reviews
- 315
- Age
- 4y ago
Blake Purely Everyday 90 gsm C5 229 x 162 mm Pocket Self Seal Window Envelopes (12084) White - Pack of 500
- Price
- £19.39
- Rating
- 4.6/5
- Reviews
- 287
- Age
- 12y ago
Trending
90-day click momentum
Blake Purely Everyday C5 162 x 229 mm 90 gsm Self Seal Wallet High Window Envelopes (1709) White - Pack of 500
- Price
- £19.81
- Rating
- 4.2/5
- Reviews
- 8
- Age
- 12y ago
Blake Purely Everyday C5 229 x 162 mm 90 gsm Self Seal Window Pocket Envelopes (13084/25 PR) White - Pack of 25
- Price
- £2.60
- Rating
- 4.5/5
- Reviews
- 189
- Age
- 12y ago
Blake Purely Everyday 90 gsm C5 229 x 162 mm Pocket Self Seal Window Envelopes (12084) White - Pack of 500
- Price
- £19.39
- Rating
- 4.6/5
- Reviews
- 287
- Age
- 12y ago
Q-Connect C5 Envelopes Window Pocket Self Seal 90 gsm White (Pack of 500)
- Price
- £14.95
- Rating
- 4.6/5
- Reviews
- 62
- Age
- 19y ago
Postmaster A5 C5 Window Envelopes 229 x 162 mm 90 GSM Self Seal White 200 Pack
- Price
- £8.02
- Rating
- 4.6/5
- Reviews
- 315
- Age
- 4y ago
Newest
by launch datePostmaster C5 Window Envelopes 229 x 162 mm A5 90 GSM Self Seal White Bulk Business Pack of 500
- Price
- £14.62
- Rating
- 4.6/5
- Reviews
- 315
- Age
- 3y ago
Postmaster A5 C5 Window Envelopes 229 x 162 mm 90 GSM Self Seal White 200 Pack
- Price
- £8.02
- Rating
- 4.6/5
- Reviews
- 315
- Age
- 4y ago
Blake Purely Everyday C5 229 x 162 mm 100 gsm Pocket Peel & Seal Window Envelopes (23084/100 PR) White - Pack of 100
- Price
- £6.89
- Rating
- 4.6/5
- Reviews
- 91
- Age
- 8y ago
Q-Connect C5 Envelopes Window Pocket Self Seal 90gsm White (Pack of 500) 9000020
- Price
- £13.61
- Rating
- 4.1/5
- Reviews
- 11
- Age
- 10y ago
Blake Purely Everyday 90 gsm C5 229 x 162 mm Pocket Self Seal Window Envelopes (12084) White - Pack of 500
- Price
- £19.39
- Rating
- 4.6/5
- Reviews
- 287
- Age
- 12y ago
Competition: brands, sellers & click share
The top 5 products capture 83% of clicks — a locked-up shelf that new listings rarely crack.
Brands
4 flat
Sellers
21
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
83%
Top 20: 100%
Open market
0%
- Postmaster39%
- Q-Connect24%
- Blake21%
- Globe Packaging16%
- Open — no brand owns it (0%)
C5 Window Envelopes demand & seasonality
Weekly search volume, with the niche's key stats alongside.
No pronounced peak months · busiest ÷ quietest = 1.5×
Top C5 Window Envelopes search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- c5 window envelopes5K/yr
- a5 window envelopes self seal3K/yr
- c5 window envelopes self seal 5002K/yr
What reviews say buyers love and hate about C5 Window Envelopes
What buyers mention most, as a share of all reviews.
What buyers love
100% of reviews“Great product - as described”
“Does what was promised”
“Great value”
“Fit for purpose”
C5 Window Envelopes return rate & reasons
Why buyers send it back, as a share of all return requests.
0.1%
Return rate
36%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common C5 Window Envelopes questions
The questions sellers ask about this niche, answered from the tracked metrics.
Related niches
Same-category niches scoring near this one — the next ones worth researching.
Best Flapen score
The highest-scoring niches we track right now, across every category.
