18 oz insulated water bottle
Worth a lookShows a fragmented shelf (top 5 take 14% of clicks), but a small market ($64K/yr) keeps it on the watch list.
Competition
Incredible14%top-5 click share — an open shelf
Avg price
Great$19.99avg listing price — sweet spot $15–$100
Price range
Great$8.13–$49.62cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Good61%top-5 brand share — brands hold most of the demand
Returns
Good2.7%return rate — above 5% kills the launch gate
Growth
Okay+17.2%90-day search growth — must beat 0% to launch
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Review moat
Bad11,104.03avg incumbent reviews — the moat a new listing must climb
Conversion
Bad1.5%search→purchase rate — share of searches ending in a sale
Market size
Bad$64K$64K/yr · 214K searches
According to Flapen's Amazon United States niche tracking, 18 oz insulated water bottle is a $64K/yr Amazon United States market (214K searches/yr). The top 5 brands hold 61% of demand. Demand peaks in Jul–Aug. Verdict: Worth a look — 52/100.
Data updated Jul 26, 2026 · scored weekly · How we score niches
18 oz insulated water bottle market data
- Units sold / yr
- 3K–4K
- avg 0–100/product
- Revenue / yr
- $60K–$80K
- units × avg price
- Conversion rate
- 1.5%
- Avg BSR
- #201
- Page quality
- 0%
- Prime
- 98%
- Sponsored
- 85%
- Out of stock
- 2.7%
- Avg brand age
- 39 months
- Avg seller age
- 138 days
Competition & brand share
Clicks spread well past the top 5 (14% combined) — an open shelf where new products get seen.Brands
56 rising
Sellers
216
Top-5 brand share
61%
Top 20: 85%
Top-5 click share
14%
Top 20: 35%
Open market
36%
- BJPKPK41%
- Bambaw7%
- Hydro Flask5%
- THERMOS4%
- Owala3%
- POWCAN3%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +17.2% search growth over the last 90 days.Peak months: Jul, Aug · busiest ÷ quietest = 2.2×
Top 18 oz insulated water bottle search terms
- bjpkpk insulated water bottles45K/yr
- bjpkpk22K/yr
- bjpkpk water bottle15K/yr
- purple insulated water bottle13K/yr
- all metal water bottle11K/yr
- 40 oz water bottle with handle13K/yr
- wide mouth stainless steel water bottles6K/yr
- all metal water bottle no plastic7K/yr
- purple stainless steel water bottle10K/yr
- all stainless steel water bottle8K/yr
Top 18 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
BJPKPK Half Gallon Insulated Water Bottles with Straw Lid 64oz Large Water Jug Stainless Steel Bottles with 3 Lids and Paracord Handle Thermo for Hot & Cold Liquid Black
BJPKPK$21.484.4★14,661 rev
Bambaw Stainless Steel Water Bottles 32 oz Non-insulated Single Wall Metal Water Bottle Stainless Steel Reusable & Eco Friendly Dishwasher Safe Silver
Bambaw$17.664.3★10,649 rev
BJPKPK Tumbler With Handle 30 oz Stainless Steel Insulated Tumbler With Lid And Straw For Water Or Ice Coffee Lavender Green
BJPKPK$13.444.6★7,456 rev
BJPKPK Insulated Water Bottles 18 oz Stainless Steel Metal Water Bottle with Strap BPA Free Leak Proof Jugs Mugs Flasks Reusable Thermal Flasks for Sports & Travel Navy Blue
BJPKPK$9.284.4★5,293 rev
Hydro Flask Water Bottle - Insulated Stainless Steel - Wide Mouth Flex Lid Non Spill Leakproof and Refillable in 32 Oz Black
Hydro Flask$31.424.7★30,650 rev
Newest
by launch date
Insulated Water Bottle 24oz Stainless Steel Double Wall Vacuum Sports Flask with 2-in-1 Straw & Chug Lid BPA-Free Leak Proof Keeps Cold 24H for Travel Gym School
ERTOOE$10.16367 rev
BJPKPK Water Bottle with Straw Lid 24oz Vacuum Insulated Water Bottles Metal Stainless Steel Thermo for Sports Travel BPA Free Leak Proof Thermo Cups Flasks Tumblers Sky
BJPKPK$12.392,828 rev
Fijinhom Insulated Water Bottle with Handle 304 Stainless Steel Water Bottles with Wide Mouth Double Wall Vacuum Sports Water Bottle BPA Free Keep Cold and Hot 24 Ounces Black
Fijinhom$13.39536 rev
BJPKPK 22oz Stainless Steel Insulated Tumbler With lid And Straw Travel Coffee Thermal Tumblers Cup For Women And Men Pink Yellow Rose
BJPKPK$13.544,153 rev
POWCAN 40 oz Insulated Water Bottle with 2-in-1 Straw and Spout Lid Keep Cold 24H Leak-Proof BPA-Free Double Wall Stainless Steel Water Bottle for Sports Gym Travel and School (Cotton Candy)
POWCAN$17.1611,176 rev
Trending
90-day click momentumInsulated Water Bottle 24oz Stainless Steel Double Wall Vacuum Sports Flask with 2-in-1 Straw & Chug Lid BPA-Free Leak Proof Keeps Cold 24H for Travel Gym School
ERTOOE$10.164.5★
BJPKPK 22oz Stainless Steel Insulated Tumbler With lid And Straw Travel Coffee Thermal Tumblers Cup For Women And Men Pink Yellow Rose
BJPKPK$13.544.6★
BJPKPK Water Bottle with Straw Lid 24oz Vacuum Insulated Water Bottles Metal Stainless Steel Thermo for Sports Travel BPA Free Leak Proof Thermo Cups Flasks Tumblers Sky
BJPKPK$12.394.5★
Bambaw 24 oz Metal Water Bottle Insulated Stainless Steel Water Bottle Great for Travel Wide Mouth for Easy Cleaning Reusable & Durable Rust-Resistant & Sturdy (Natural Steal)
Bambaw$19.414.4★
BJPKPK 64 oz Insulated Water Bottle Dishwasher Safe Half Gallon Water Bottle with Ergonomic Handle BPA Free Leak Proof Water Jug for Sports Metal Jug with Anti-slip Bottom Black
BJPKPK$21.394.2★
What buyers say about 18 oz insulated water bottle
What buyers praise and complain about, mined from review topics.What buyers love
“Water stays cool”
“Excellent Product”
“Perfect size for travel or home”
“It is leak proof”
“Cute color”
“Money well spent”
“Exactly as pictured”
“Durable, easy to clean”
“easy to handle”
“It is easy to wash”
What buyers complain about
“Keeps leaking”
“Doesn't last”
“not this size”
“Bad Quality”
“Extremely hard to close”
“BUT it's cold retention is pitiful”
“Rusted in a month”
“Stopped holding heat”
“Its very dirty”
“Handle keeps coming off”
Top return reasons
Common questions
- Is 18 oz insulated water bottle profitable to sell on Amazon United States?
- The niche generates $64K/yr across 196 tracked products. 13 of 30 products launched in the last 360 days are still selling. 90-day search growth is +17.2%. Flapen's verdict: Worth a look (52/100).
- How competitive is the 18 oz insulated water bottle niche?
- 56 brands and 216 sellers compete. The top 5 products take 14% of clicks and top 5 brands hold 61% of demand.
- What do buyers complain about in 18 oz insulated water bottle?
- Top complaints mined from reviews: Leak-Proof, Durability, Size-Overall. The return rate is 2.7%.
- When does demand for 18 oz insulated water bottle peak?
- Demand peaks in Jul–Aug; the busiest month runs 2.2× the quietest.
- What does it cost to enter the 18 oz insulated water bottle niche?
- Listings span $8.13–$49.62; the average listing price is $19.99 (sweet spot $15–$100). The average incumbent carries 11,104 reviews — the moat a new listing must climb.