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53

mylar bags

Worth a look

Shows low returns (0.8%), but a small market ($53K/yr) keeps it on the watch list.

Market size 13Growth 13Conversion 48Competition 77Returns 96Price range 76Avg price 52Brand share 81Review moat 88Quality gap 38

Returns

Incredible0.8%

return rate — above 5% kills the launch gate

Review moat

Great241.14

avg incumbent reviews — the moat a new listing must climb

Brand share

Great54%

top-5 brand share — no brand owns this niche

Competition

Great38%

top-5 click share — an open shelf

Price range

Great£4.10–£49.66

cheapest to priciest tracked listing — scored on the share inside $15–$100

Avg price

Good£12.25

avg listing price — sweet spot $15–$100

Conversion

Okay3.8%

search→purchase rate — share of searches ending in a sale

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Market size

Bad£53K

£53K/yr · 113K searches

Growth

Bad-24.9%

90-day search growth — must beat 0% to launch

According to Flapen's Amazon United Kingdom niche tracking, mylar bags is a £53K/yr Amazon United Kingdom market (113K searches/yr). The top 5 brands hold 54% of demand. Verdict: Worth a look — 53/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

mylar bags market data

Units sold / yr
3K–4K
avg 0–100/product
Revenue / yr
£37K–£49K
units × avg price
Conversion rate
3.8%
Avg BSR
#421
Page quality
0%
Prime
94%
Sponsored
82%
Out of stock
9.4%
Avg brand age
34 months
Avg seller age
215 days

Competition & brand share

Clicks spread well past the top 5 (38% combined) — an open shelf where new products get seen.

Brands

30 rising

Sellers

94

Top-5 brand share

54%

Top 20: 92%

Top-5 click share

38%

Top 20: 72%

Open market

40%

  • THIVENNY13%
  • PROPREMIUM MYLAR13%
  • WACCOMT Pack12%
  • XFXIA8%
  • LinsKind8%
  • K KAREZOG6%

Demand

Weekly Amazon search volume, last 17 weeks — -24.9% search growth over the last 90 days.
4K3KMar '26Apr '26Apr '26May '26May '26Jun '26Jun '26Jul '26Jul '26

Top mylar bags 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%£2K8%£4K12%£6K16%£8K1101001K10K Reviews — right = deep review moat Market 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.

What buyers say about mylar bags

What buyers praise and complain about, mined from review topics.

What buyers love

Value For Money18%

“Good price”

Quality-Overall17%

“excellent items, best thing since sliced bread”

Advertised Vs Actual Product11%

“As described”

Thickness6%

“The bags are thick”

Smell4%

“Good value and smell proof”

Size-Overall4%

“The size is correct”

Absorbency4%

“individually wrapped so not loss of absorbency”

Storage Capacity4%

“Found it to be very useful for long term storage as i most of the time only shop during sales because of the cost of living crisis”

Efficiency3%

“Ypthey work fine”

Strength3%

“Sturdy & well made as described”

What buyers complain about

Size-Overall23%

“Not accurate sizing”

Functionality-Overall15%

“Dont work”

Advertised Vs Actual Product7%

“These are misadvertised”

Value For Money7%

“expensive”

Material Quality5%

“One downside of course this means more plastic”

Absorbency5%

“I did not get the correct amount of o2 absorbers for the amount of bags so was quite disappointed”

Quality-Overall4%

“Poor quality”

Measurement/Reading Accuracy3%

“The sizes are not accurate”

Leak-Proof3%

“All leaking”

Ease Of Use3%

“It can be difficult to open”

Top return reasons

Size-Overall89%
Advertised Vs Actual Product3%
Quality-Overall2%
Locking Mechanism1%
Value For Money1%
Functionality-Overall1%
Storage Capacity1%
Heating1%
Compatibility-Overall1%
Strength1%

Common questions

Is mylar bags profitable to sell on Amazon United Kingdom?
The niche generates £53K/yr across 49 tracked products. 0 of 10 products launched in the last 360 days are still selling. 90-day search growth is -24.9%. Flapen's verdict: Worth a look (53/100).
How competitive is the mylar bags niche?
30 brands and 94 sellers compete. The top 5 products take 38% of clicks and top 5 brands hold 54% of demand.
What do buyers complain about in mylar bags?
Top complaints mined from reviews: Size-Overall, Functionality-Overall, Advertised Vs Actual Product. The return rate is 0.8%.
What does it cost to enter the mylar bags niche?
Listings span £4.10–£49.66; the average listing price is £12.25 (sweet spot $15–$100). The average incumbent carries 241 reviews — the moat a new listing must climb.