plastic flask
Worth a lookShows searches that convert (10.6% search→purchase), but prices mostly outside the sweet spot ($5.89–$17.63) keeps it on the watch list.
Conversion
Great10.6%search→purchase rate — share of searches ending in a sale
Returns
Good2.1%return rate — above 5% kills the launch gate
Review moat
Good816.45avg incumbent reviews — the moat a new listing must climb
Market size
Good$595K$595K/yr · 568K searches
Brand share
Good70%top-5 brand share — brands hold most of the demand
Competition
Okay62%top-5 click share — leaders hold, buyers still browse
Growth
Okay+6.7%90-day search growth — must beat 0% to launch
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Avg price
Okay$9.91avg listing price — sweet spot $15–$100
Price range
Bad$5.89–$17.63cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, plastic flask is a $595K/yr Amazon United States market (568K searches/yr). The top 5 brands hold 70% of demand. Demand peaks in Apr–May. Verdict: Worth a look — 52/100.
Data updated Aug 6, 2026 · scored weekly · How we score niches
plastic flask market data
- Units sold / yr
- 50K–60K
- avg 2,000–2,500/product
- Revenue / yr
- $496K–$595K
- units × avg price
- Conversion rate
- 10.6%
- Avg BSR
- #34
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 55%
- Out of stock
- 1.0%
- Avg brand age
- 44 months
- Avg seller age
- 163 days
Competition & brand share
The top 5 products take 62% of clicks — established leaders, but buyers still shop beyond them.Brands
17 rising
Sellers
20
Top-5 brand share
70%
Top 20: 100%
Top-5 click share
62%
Top 20: 98%
Open market
24%
- Keon23%
- OHMAXHO16%
- PECULA13%
- ZPLYYDS11%
- DUALIE8%
- GoPong6%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +6.7% search growth over the last 90 days.Peak months: Apr, May · busiest ÷ quietest = 1.9×
Top plastic flask search terms
- plastic flask231K/yr
- plastic flask for liquor70K/yr
- alcohol pouches41K/yr
- liquor pouches35K/yr
- plastic flasks41K/yr
- alcohol bags for liquor hidden14K/yr
- liquid pouches11K/yr
- disposable flask15K/yr
- plastic pouches for drinks12K/yr
- alcohol pouches for liquor for hiding11K/yr
Top plastic flask 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 22 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Keon Plastic Pouches - Leak-Proof Reusable Flexible Juice Bags BPA-Free for Travel Outdoor Sports Concerts Events (8OZ - 10PCS + 2 Funnels)
Keon$8.234.6★1,549 rev
24 Pcs Plastic Flasks 8 Oz Concealable and Reusable Drink Pouches Leak-Proof Food Grade Plastic for Travel (8OZ-24PCS +3 Funnels)
PECULA$7.604.7★1,498 rev
Plastic Flasks 40 PCS - Leak-Proof Reusable Flexible Juice Bags BPA-Free for Travel Outdoor Sports Concerts Events (8OZ - 40PCS + 3 Funnels)
ZPLYYDS$10.394.8★49 rev
OHMAXHO Plastic Flasks - Reusable Leak-Proof for Travel Outdoor Sport Running enthusiasts Concerts Events(8OZ-16OZ-32OZ 16PCS)
OHMAXHO$8.844.6★913 rev
OHMAXHO Alcohol Pouches for Liquor Reusable Drink Pouches for Adults Alcohol Drinking Flasks Concealable Plastic Liquor Bags with Funnel Plastic Travel Flasks (8OZ4 + 16OZ4)
OHMAXHO$6.154.6★913 rev
Newest
by launch datePlastic Flasks 40 PCS - Leak-Proof Reusable Flexible Juice Bags BPA-Free for Travel Outdoor Sports Concerts Events (8OZ - 40PCS + 3 Funnels)
ZPLYYDS$10.3949 rev
JueLanvie 20 Pcs Reusable Plastic Flasks for Liquid 8 Oz Drink Pouches Collapsible Portable containers for Concerts & Festivals Hot & Freezer Safe BPA-Free Food-Grade 8oz with Funnels
JueLanvie$6.88113 rev
DUALIE 8 oz Hip Flask for Liquor - Shatterproof Alcohol Flasks with Clear Tritan Plastic and Silicone Grip - Flask Gift for Men & Women - Navy
DUALIE$12.6783 rev
DUALIE 6 oz Hip Flask for Liquor - Shatterproof Alcohol Flasks with Clear Tritan Plastic and Silicone Grip - Flask Gift for Men & Women - Seafoam
DUALIE$11.7973 rev
DUALIE 8 oz Hip Flask for Liquor - Shatterproof Alcohol Flasks with Clear Tritan Plastic and Silicone Grip - Flask Gift for Men & Women - Black
DUALIE$12.7683 rev
Trending
90-day click momentumPlastic Flasks 40 PCS - Leak-Proof Reusable Flexible Juice Bags BPA-Free for Travel Outdoor Sports Concerts Events (8OZ - 40PCS + 3 Funnels)
ZPLYYDS$10.394.8★
DUALIE 8 oz Hip Flask for Liquor - Shatterproof Alcohol Flasks with Clear Tritan Plastic and Silicone Grip - Flask Gift for Men & Women - Navy
DUALIE$12.674.6★
JueLanvie 20 Pcs Reusable Plastic Flasks for Liquid 8 Oz Drink Pouches Collapsible Portable containers for Concerts & Festivals Hot & Freezer Safe BPA-Free Food-Grade 8oz with Funnels
JueLanvie$6.884.6★
Rabbit Leak-Proof Discreet Flask 6.5oz Pocket-Friendly Shatterproof Tritan Alcohol Container with Wide Mouth & Tethered Cap Portable BPA-Free Travel Flask for Concerts & Festivals
Rabbit$12.384.4★
DUALIE 6 oz Hip Flask for Liquor - Shatterproof Alcohol Flasks with Clear Tritan Plastic and Silicone Grip - Flask Gift for Men & Women - Seafoam
DUALIE$11.794.6★
What buyers say about plastic flask
What buyers praise and complain about, mined from review topics.What buyers love
“Didn't Leak”
“Just as described”
“These are the perfect concealment”
“Excellent value”
“As simple as it gets”
“does the job”
“Good durability”
“easy to carry around”
“Perfect size to carry in your pocket”
“*While disposable, these are easily cleaned by hot, sudsy water”
What buyers complain about
“leaked all over”
“The size is a little smaller than what the product pictures might suggest”
“Low quality”
“Material is very flimsy”
“Super hard to fill”
“Durability might be an issue”
“Not reusable like description says”
“Product was used”
“Very thin”
“feels as flimsy as a water balloon like it could pop with any pressure, not steady”
Top return reasons
Common questions
- Is plastic flask profitable to sell on Amazon United States?
- The niche generates $595K/yr across 22 tracked products. 6 of 9 products launched in the last 360 days are still selling. 90-day search growth is +6.7%. Flapen's verdict: Worth a look (52/100).
- How competitive is the plastic flask niche?
- 17 brands and 20 sellers compete. The top 5 products take 62% of clicks and top 5 brands hold 70% of demand.
- What do buyers complain about in plastic flask?
- Top complaints mined from reviews: Leak-Proof, Size-Overall, Quality-Overall. The return rate is 2.1%.
- When does demand for plastic flask peak?
- Demand peaks in Apr–May; the busiest month runs 1.9× the quietest.
- What does it cost to enter the plastic flask niche?
- Listings span $5.89–$17.63; the average listing price is $9.91 (sweet spot $15–$100). The average incumbent carries 816 reviews — the moat a new listing must climb.