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Thermos Flask

Fail

Demand is soft, at -22.9% this quarter, so Thermos Flask is a Fail.

Flapen Score
49
49 / 100
Ranks 3,207 of 5,777 Home & Garden niches · −2 vs the category median of 51
Market size
£1.2M/yr2.9M searches / yr
90-day growth
-22.9%search demand this quarter
Competition
52%top-5 click share · 15 brands · 95 sellers

Flapen Score

Thermos Flask against its category

The dotted line is the Home & Garden average. Past it, Thermos Flask is stronger. Inside it, weaker.

49Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Thermos Flask market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Thermos Flask 2.9M times last year and spent an estimated £1.2M. The top 5 brands take 89% of clicks. Demand peaks in Jan–Oct–Nov–Dec. Flapen scores it 49 out of 100, a Fail.

01 · Demand

An estimated 2.6% of those searches ended in a purchase.

Shoppers searched for this 2.9M times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 2.6% of those searches ended in a purchase. Searches in the last 90 days moved -22.9% against the 90 days before. Searches, conversion and average price together put the market at an estimated £1.2M a year.

Searches, last 12 months
2.9M
Growth, 90 days vs prior 90
-22.9%
Conversion, latest week
2.6%
Market size, estimated
£1.2Ma year
Peak month
December2.4× the quietest month
Top search term
thermos flask779K searches a year

02 · Price

A sale here is worth £15.87.

Listings sell for £15.87 on average, from £6.97 to £37.66. Amazon reports units sold in ranges. This niche sold 60K to 80K a year. The average listing sells 2,000 to 2,500 of them. At £15.87 that is £32K to £40K a year per listing.

Average price
£15.87inside the $15 to $100 sweet spot
Price range
£6.97–£37.66
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
60K–80K
Units per listing a year
2,000–2,500
Revenue per listing a year
£32K–£40K
Returns
1.5%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is reviews.

79% of listings pay for placement with sponsored ads. 97% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #90 within Vacuum Flasks. It carries 15,007 reviews at 4.51 stars, so a new listing needs social proof before a better product.

Sponsored listings
79%
Prime listings
97%
Out of stock, average day
0.0%
Average rank
#90in Vacuum Flasks
Average rating
4.51 starsAmazon United Kingdom average 4.36 stars
Average reviews
15,007per listing
Listings tracked
34

04 · Newcomers

0 of last year's 1 launches cleared the first-year sales bar.

1 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 46 months on average, so the names here are settling in.

Launched, last 12 months
1
Successful launches
0Amazon's first-year sales bar
Average brand age
46 months

Products

Top Thermos Flask 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 27, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 52% of clicks. Leaders hold, but buyers still shop past them.

£0£47K£94K£141K£188K1001K10K100K1.0M Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

15 falling

Sellers

95

Est. top-5 brand share

89%

Top 20: 100%

Est. top-5 click share

52%

Top 20: 86%

Open market

9%

  • Thermos74%
  • MILTON8%
  • Contigo3%
  • THERMOcafé by THERMOS3%
  • Jumkeet2%
  • STANLEY1%
  • Open — no brand owns it (9 brands, 9%)

Demand

Thermos Flask search demand

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

125K75KSpike '24Black Friday '24Prime Day '25Spike '25Black Friday '25SepDecMarJunAugNovMarMay

Peak months: Jan, Oct, Nov, Dec · busiest ÷ quietest = 2.4×

Search terms

Top Thermos Flask search terms shoppers use

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

  • thermos flask779K/yr
  • flask658K/yr
  • flask for hot drink408K/yr
  • thermos341K/yr
  • flasks for hot and cold drinks70K/yr
  • hot water flask75K/yr
  • thermal flask79K/yr
  • stainless steel flask25K/yr
  • flasks61K/yr
  • thermos flask for hot drinks52K/yr

Reviews and returns

What reviews say buyers love and hate about Thermos Flask

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

21%of positive reviews mention “Quality-Overall”
18%of negative reviews mention “Heating”
1.5%of orders come back
“doesn't retain heat well”
A buyer, on “Heating”18% 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 Thermos Flask 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