Thermos Flask
FailDemand is soft, at -22.9% this quarter, so Thermos Flask is a Fail.
- Flapen Score
- 49 / 100Ranks 3,207 of 5,777 Home & Garden niches · −2 vs the category median of 5149
- 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.
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.
Top sellers
by estimated 90-day click share
Thermos - Stainless King Midnight Blue Travel Flask (1.2L) Premium Leak Proof Insulated Tea & Coffee Flask Hot & Cold Drinks Built-in Cup Twist-Pour Stopper BPA-Free Durable Steel
- Price
- £20.00
- Rating
- 4.7/5
- Reviews
- 24,566
- Age
- 17y ago

Thermos - Stainless King Red Travel Flask (1.2L) - Premium Leak Proof Insulated Tea & Coffee Flask for Hot & Cold Drinks Built-in Cup Twist-Pour Stopper BPA-Free Durable Steel
- Price
- £19.16
- Rating
- 4.7/5
- Reviews
- 24,566
- Age
- 13y ago

Thermos Stainless King 470ml Multi-Purpose Thermos Flask - Original-Style Flask can be used as Travel Mug or Insulated Water Bottle for Daily Commute & Weekend Adventures Matt Black
- Price
- £14.29
- Rating
- 4.7/5
- Reviews
- 5,636
- Age
- 12y ago

ThermoCafe Stainless Steel 500ml Flask
- Price
- £8.24
- Rating
- 4.6/5
- Reviews
- 22,004
- Age
- 19y ago

THERMOcafè by THERMOS Stainless Steel Flask Multi-colour 1.0 Litre
- Price
- £11.97
- Rating
- 4.6/5
- Reviews
- 22,004
- Age
- 19y ago
Trending
estimated 90-day click momentum
Water Bottle Otto Koning 1L - 1 Litre Stainless Steel Vacuum Insulated Flask - Keeps Cold 24h / Hot 12h - Large Leak Proof & BPA Free Metal Drinks Bottle for Gym Hiking & Sports
- Price
- £8.60
- Rating
- 4.6/5
- Reviews
- 10,532
- Age
- 2y ago

Thermos - Stainless King Midnight Blue Travel Flask (1.2L) Premium Leak Proof Insulated Tea & Coffee Flask Hot & Cold Drinks Built-in Cup Twist-Pour Stopper BPA-Free Durable Steel
- Price
- £20.00
- Rating
- 4.7/5
- Reviews
- 24,566
- Age
- 17y ago

THERMOcafè by THERMOS Stainless Steel Flask Multi-colour 1.0 Litre
- Price
- £11.97
- Rating
- 4.6/5
- Reviews
- 22,004
- Age
- 19y ago

Thermos - Stainless King Gun Metal Travel Flask (1.2L) Premium Leak Proof Insulated Tea & Coffee Flask for Hot & Cold Drinks Built-in Cup Twist-Pour Stopper BPA-Free Durable Steel
- Price
- £18.81
- Rating
- 4.7/5
- Reviews
- 24,566
- Age
- 10y ago

Thermos - Stainless King Duck Egg Travel Flask (1.2L) Premium Leak Proof Insulated Tea & Coffee Flask for Hot & Cold Drinks Built-in Cup Twist-Pour Stopper BPA-Free Durable Steel
- Price
- £19.97
- Rating
- 4.7/5
- Reviews
- 24,566
- Age
- 8y ago
Newest
by launch date
Bargain Factory Water Flask Double Walled Vacuum Insulated Flask 500ml Leakproof 24 Hours Hot and Cold Water Bottle Durable Stainless-Steel Interior and Exterior Silver
- Price
- £6.97
- Rating
- 4.1/5
- Reviews
- 291
- Age
- 2y ago

Water Bottle Otto Koning 1L - 1 Litre Stainless Steel Vacuum Insulated Flask - Keeps Cold 24h / Hot 12h - Large Leak Proof & BPA Free Metal Drinks Bottle for Gym Hiking & Sports
- Price
- £8.60
- Rating
- 4.6/5
- Reviews
- 10,532
- Age
- 2y ago

QiCheng&LYS 500ML Travel Mug with Temperature Display 304 Stainless Steel Double Walled Vacuum Insulation Cup for Heat and Cold Water(Pink)
- Price
- £10.10
- Rating
- 3.6/5
- Reviews
- 1,236
- Age
- 5y ago

Contigo Byron SNAPSEAL Travel Mug 470 ml
- Price
- £8.07
- Rating
- 4.4/5
- Reviews
- 23,825
- Age
- 7y ago

YJ&H Double Walled Vacuum Insulated Bottle with Cup - Stainless Steel Thermo Flask - Reusable Drinking Water Bottles BPA Free - for Kids & Adult Sports Outdoor Office - 650ml Champagne Gold
- Price
- £10.55
- Rating
- 4.3/5
- Reviews
- 4,998
- Age
- 7y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 52% of clicks. Leaders hold, but buyers still shop past them.
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.
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.
“doesn't retain heat well”
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
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
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









