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61

128 oz insulated water bottle

Worth a look

Shows a sweet-spot price point ($37.47 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 52Growth 68Conversion 42Competition 72Returns 57Price range 91Avg price 95Brand share 81Review moat 24Quality gap 32

Avg price

Incredible$37.47

avg listing price — sweet spot $15–$100

Price range

Great$16.75–$104.38

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

Brand share

Great54%

top-5 brand share — no brand owns this niche

Competition

Good42%

top-5 click share — leaders hold, buyers still browse

Growth

Good+49.2%

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

Returns

Good2.7%

return rate — above 5% kills the launch gate

Market size

Good$329K

$329K/yr · 262K searches

Conversion

Okay3.4%

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

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Review moat

Bad5,279.26

avg incumbent reviews — the moat a new listing must climb

According to Flapen's Amazon United States niche tracking, 128 oz insulated water bottle is a $329K/yr Amazon United States market (262K searches/yr). The top 5 brands hold 54% of demand. Demand peaks in Jun–Jul. Verdict: Worth a look — 61/100.

Data updated Jul 26, 2026 · scored weekly · How we score niches

128 oz insulated water bottle market data

Units sold / yr
8K–10K
avg 250–500/product
Revenue / yr
$300K–$375K
units × avg price
Conversion rate
3.4%
Avg BSR
#110
Page quality
0%
Prime
100%
Sponsored
95%
Out of stock
2.6%
Avg brand age
44 months
Avg seller age
150 days

Competition & brand share

The top 5 products take 42% of clicks — established leaders, but buyers still shop beyond them.

Brands

27 rising

Sellers

47

Top-5 brand share

54%

Top 20: 95%

Top-5 click share

42%

Top 20: 85%

Open market

41%

  • DYSANKY14%
  • Kerilyn13%
  • RAYMYLO12%
  • WATERSY9%
  • Coolflask6%
  • Meoky5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +49.2% search growth over the last 90 days.
10K6KSpike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jun, Jul · busiest ÷ quietest = 2.4×

Top 128 oz insulated water bottle search terms

  • 128 oz insulated water bottle34K/yr
  • 1 gallon stainless steel water jug24K/yr
  • stainless steel gallon water jug22K/yr
  • gallon stainless steel water jug19K/yr
  • metal gallon water bottle17K/yr
  • 1 gallon insulated water bottle14K/yr
  • gallon metal water bottle13K/yr
  • gallon hydroflask15K/yr
  • 1 gallon metal water bottle11K/yr
  • 1 gallon thermos12K/yr
All search terms

Top 128 oz insulated water bottle 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%3%$10K6%$20K9%$30K12%$39K1001K10K100K 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 128 oz insulated water bottle

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

What buyers love

Quality-Overall17%

“Premium quality”

Temperature Retention16%

“Keeps drinks cold”

Value For Money8%

“Amazing price”

Durability7%

“has been holding up well”

Leak-Proof6%

“Doesnt leak”

Size-Overall4%

“Great size”

Advertised Vs Actual Product4%

“Just what I needed”

Water Resistance4%

“still a good water bottle”

Ease Of Use3%

“Easy to Handle”

Design-Overall2%

“Clean design - no obnoxious branding”

What buyers complain about

Leak-Proof18%

“It leaks”

Durability10%

“Cracks easily”

Size-Overall6%

“needed a bigger size”

Quality-Overall5%

“The quality of this product is flawed”

Rusts/Corrodes4%

“Rust spot”

Smell4%

“Smells strong of plastic fumes”

Weight Heavy4%

“Way to heavy”

Heating3%

“it was hot”

Value For Money3%

“Overly priced as well”

Water Resistance2%

“The lids do not make a waterproof seal”

Top return reasons

Size-Overall49%
Leak-Proof12%
Weight Heavy9%
Value For Money4%
Advertised Vs Actual Product4%
Functionality-Overall3%
Product Condition2%
Handle Quality2%
Smell2%
Ease Of Use1%

Common questions

Is 128 oz insulated water bottle profitable to sell on Amazon United States?
The niche generates $329K/yr across 38 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +49.2%. Flapen's verdict: Worth a look (61/100).
How competitive is the 128 oz insulated water bottle niche?
27 brands and 47 sellers compete. The top 5 products take 42% of clicks and top 5 brands hold 54% of demand.
What do buyers complain about in 128 oz insulated water bottle?
Top complaints mined from reviews: Leak-Proof, Durability, Size-Overall. The return rate is 2.7%.
When does demand for 128 oz insulated water bottle peak?
Demand peaks in Jun–Jul; the busiest month runs 2.4× the quietest.
What does it cost to enter the 128 oz insulated water bottle niche?
Listings span $16.75–$104.38; the average listing price is $37.47 (sweet spot $15–$100). The average incumbent carries 5,279 reviews — the moat a new listing must climb.