Thermos Flask
soft demand (-22.9% this quarter) — Thermos Flask doesn't clear our bar today.
Flapen Score
Is Thermos Flask profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Thermos Flask is a £1.2M/yr Amazon United Kingdom market (2.9M searches/yr). The top 5 brands hold 89% of demand. Demand peaks in Jan–Oct–Nov–Dec. Verdict: Skip it — 49/100.
Thermos Flask: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved -22.9% over the last 90 days and 2.6% of searches end in a purchase.
£1.2M
revenue / yr
Who owns the niche?
The top 5 brands hold 89% of demand, so 11% of the market is open.
11%
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 · 34 products
Top Thermos Flask 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
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
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: brands, sellers & click share
The top 5 products take 52% of clicks — established leaders, but buyers still shop beyond them.
Brands
15 falling
Sellers
95
Top-5 brand share
89%
Top 20: 100%
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%)
Thermos Flask demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Peak months: Jan, Oct, Nov, Dec · busiest ÷ quietest = 2.4×
Top Thermos Flask search terms shoppers use
The exact queries shoppers type, with 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
What reviews say buyers love and hate about Thermos Flask
What buyers mention most, as a share of all reviews.
What buyers love
78% of reviews“Good quality bottle”
“Keeps water cool as it states”
“Good Value”
“Does not leak”
“Keeps heat etc”
What buyers complain about
67% of reviews“doesn't retain heat well”
“this one leaks”
“Bad quality”
“it broke during first use”
“Ok just overpriced”
Thermos Flask return rate & reasons
Why buyers send it back, as a share of all return requests.
1.5%
Return rate
74%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Thermos Flask questions
The questions sellers ask about this niche, answered from the tracked metrics.
Best Flapen score
The highest-scoring niches we track right now, across every category.









