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57

lunch box with thermos

Worth a look

Shows a fragmented shelf (top 5 take 15% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 46Growth 55Conversion 16Competition 96Returns 39Price range 80Avg price 94Brand share 92Review moat 23Quality gap 25

Competition

Incredible15%

top-5 click share — an open shelf

Avg price

Great$22.69

avg listing price — sweet spot $15–$100

Brand share

Great43%

top-5 brand share — no brand owns this niche

Price range

Great$6.51–$50.47

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

Growth

Good+28.7%

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

Market size

Okay$247K

$247K/yr · 844K searches

Returns

Okay3.9%

return rate — above 5% kills the launch gate

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Review moat

Bad8,593.76

avg incumbent reviews — the moat a new listing must climb

Conversion

Bad1.3%

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

According to Flapen's Amazon United States niche tracking, lunch box with thermos is a $247K/yr Amazon United States market (844K searches/yr). The top 5 brands hold 43% of demand. Demand peaks in Aug–Sep. Verdict: Worth a look — 57/100.

Data updated Aug 2, 2026 · scored weekly · How we score niches

lunch box with thermos market data

Units sold / yr
13K–15K
avg 0–100/product
Revenue / yr
$284K–$340K
units × avg price
Conversion rate
1.3%
Avg BSR
#113
Page quality
0%
Prime
99%
Sponsored
95%
Out of stock
4.1%
Avg brand age
34 months
Avg seller age
137 days

Competition & brand share

Clicks spread well past the top 5 (15% combined) — an open shelf where new products get seen.

Brands

73 rising

Sellers

119

Top-5 brand share

43%

Top 20: 77%

Top-5 click share

15%

Top 20: 38%

Open market

53%

  • Bentgo22%
  • Omie7%
  • FlowFly6%
  • Simple Modern5%
  • wiwens4%
  • mibasies3%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +28.7% search growth over the last 90 days.
50K30KSpike '24Spike '25Prime Day '25Holiday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Aug, Sep · busiest ÷ quietest = 5.4×

Top lunch box with thermos search terms

  • toddler lunch bag104K/yr
  • lunch box with thermos118K/yr
  • kids lunch box with thermos92K/yr
  • bentgo kids54K/yr
  • baby lunch box43K/yr
  • baby lunch box for daycare43K/yr
  • toddler lunchbox29K/yr
  • lunch box kids girl40K/yr
  • toddler girl lunch box28K/yr
  • kids insulated lunch bag24K/yr
All search terms

Top lunch box with thermos 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%1%$2K2%$5K3%$7K4%$10K1101001K10K100K 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 lunch box with thermos

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

What buyers love

Size-Overall17%

“Perfect size for travel”

Quality-Overall15%

“Nice quality containers”

Value For Money10%

“Great Deal”

Storage Capacity7%

“holds a good amount of food”

Durability6%

“durable material”

Ease Of Use5%

“easy to hold”

Advertised Vs Actual Product4%

“Gets the Job Done”

Ease Of Cleaning4%

“it cleans up nicely”

Leak-Proof3%

“Leak proof”

Strength3%

“The containers are surprisingly sturdy”

What buyers complain about

Size-Overall14%

“Much smaller”

Durability11%

“Breaks easily”

Quality-Overall9%

“low build quality”

Leak-Proof5%

“It leaks”

Value For Money3%

“wish it wasn't so expensive”

Strength3%

“Not sturdy”

Temperature Control3%

“Does not keep food hot/warm”

Smell3%

“Strong chemical smell”

Heating3%

“didn't really keep the heat in”

Ease Of Cleaning3%

“Hard to clean”

Top return reasons

Size-Overall58%
Value For Money7%
Quality-Overall4%
Advertised Vs Actual Product4%
Weight Heavy3%
Material Quality3%
Color3%
Functionality-Overall2%
Ease Of Use2%
Leak-Proof2%

Common questions

Is lunch box with thermos profitable to sell on Amazon United States?
The niche generates $247K/yr across 172 tracked products. 8 of 21 products launched in the last 360 days are still selling. 90-day search growth is +28.7%. Flapen's verdict: Worth a look (57/100).
How competitive is the lunch box with thermos niche?
73 brands and 119 sellers compete. The top 5 products take 15% of clicks and top 5 brands hold 43% of demand.
What do buyers complain about in lunch box with thermos?
Top complaints mined from reviews: Size-Overall, Durability, Quality-Overall. The return rate is 3.9%.
When does demand for lunch box with thermos peak?
Demand peaks in Aug–Sep; the busiest month runs 5.4× the quietest.
What does it cost to enter the lunch box with thermos niche?
Listings span $6.51–$50.47; the average listing price is $22.69 (sweet spot $15–$100). The average incumbent carries 8,594 reviews — the moat a new listing must climb.