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Mailing Bags 12x16

Fail

Prices span $2.67–$8.18, mostly outside the sweet spot, so Mailing Bags 12x16 is a Fail.

Flapen Score
39
39 / 100
Ranks 638 of 740 Business, Industry & Science niches · −10 vs the category median of 49
Market size
£62K/yr82K searches / yr
90-day growth
+2.2%search demand this quarter
Competition
63%top-5 click share · 10 brands · 16 sellers

Flapen Score

Mailing Bags 12x16 against its category

The dotted line is the Business, Industry & Science average. Past it, Mailing Bags 12x16 is stronger. Inside it, weaker.

39Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Mailing Bags 12x16 market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Mailing Bags 12x16 82K times last year and spent an estimated £62K. The top 5 brands take 88% of clicks. Demand peaks in Oct–Nov. Flapen scores it 39 out of 100, a Fail.

01 · Demand

An estimated 14.5% of those searches ended in a purchase.

Shoppers searched for this 82K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 14.5% of those searches ended in a purchase. Searches in the last 90 days moved +2.2% against the 90 days before. Searches, conversion and average price together put the market at an estimated £62K a year.

Searches, last 12 months
82K
Growth, 90 days vs prior 90
+2.2%
Conversion, latest week
14.5%
Market size, estimated
£62Ka year
Peak month
November2.2× the quietest month
Top search term
12x16 mailing bags21K searches a year

02 · Price

A sale here is worth £5.21.

Listings sell for £5.21 on average, from £2.67 to £8.18. Amazon reports units sold in ranges. This niche sold 10K to 13K a year. The average listing sells 250 to 500 of them. At £5.21 that is £1K to £3K a year per listing.

Average price
£5.21under the $15 to $100 sweet spot
Price range
£2.67–£8.18
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
10K–13K
Units per listing a year
250–500
Revenue per listing a year
£1K–£3K
Returns
0.1%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is ads and reviews.

95% of listings pay for placement with sponsored ads. 95% ship with Prime. On an average day, 12.4% of listings are out of stock. The average listing ranks #13 within Packaging & Shipping Supplies. It carries 3,815 reviews at 4.66 stars, so a new listing needs social proof before a better product.

Sponsored listings
95%
Prime listings
95%
Out of stock, average day
12.4%
Average rank
#13in Packaging & Shipping Supplies
Average rating
4.66 starsAmazon United Kingdom average 4.36 stars
Average reviews
3,815per listing
Listings tracked
22

04 · Newcomers

4 of last year's 5 launches cleared the first-year sales bar.

5 products launched here in the last 12 months. 4 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 50 months on average, so the names here are settling in.

Launched, last 12 months
5
Successful launches
4Amazon's first-year sales bar
Average brand age
50 months

Products

Top Mailing Bags 12x16 products & what they sell for

The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.

Prices and ratings read from Amazon on Jul 21, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 63% of clicks. Leaders hold, but buyers still shop past them.

£0£6K£12K£19K£25K101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

10 falling

Sellers

16

Est. top-5 brand share

88%

Top 20: 100%

Est. top-5 click share

63%

Top 20: 98%

Open market

8%

  • iSOUL52%
  • Switory12%
  • delka10%
  • Double Dragon9%
  • Straame5%
  • 1ABOVE3%
  • Open — no brand owns it (4 brands, 8%)

Demand

Mailing Bags 12x16 search demand

Weekly searches over the year, seasonality beneath. Pick a range.

2K2KSpike '25Prime Day '25Spike '26JanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

Peak months: Oct, Nov · busiest ÷ quietest = 2.2×

Search terms

Top Mailing Bags 12x16 search terms shoppers use

The exact words shoppers type, with estimated yearly volume, growth, and conversion.

  • 12x16 mailing bags21K/yr
  • mailing bags 12x1619K/yr
  • 12 x 16 mailing bags14K/yr
  • postage bags 12 x 16 inch11K/yr
  • parcel bags 12x165K/yr
  • medium mailing bags 12x163K/yr
  • mail bags 12 x 164K/yr
  • parcel bags 12 x 16 inch6K/yr

Reviews and returns

What reviews say buyers love and hate about Mailing Bags 12x16

We read the reviews and the return reasons for every product selling here.

26%of positive reviews mention “Quality-Overall”
23%of negative reviews mention “Quality-Overall”
0.1%of orders come back
“the product quality has deteriorated massively in the latest lot Ive ordered”
A buyer, on “Quality-Overall”23% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

14 topics

NegativePositive

FAQ

Common Mailing Bags 12x16 questions

Answered from the same tracked data.

Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data