custom flask
Skip itA small market ($17K/yr) — this niche doesn't clear our bar today.
Avg price
Incredible$25.55avg listing price — sweet spot $15–$100
Price range
Great$8.32–$91.07cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Great343.24avg incumbent reviews — the moat a new listing must climb
Competition
Great39%top-5 click share — an open shelf
Brand share
Great59%top-5 brand share — no brand owns this niche
Returns
Great1.9%return rate — above 5% kills the launch gate
Growth
Okay+1.3%90-day search growth — must beat 0% to launch
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Conversion
Bad0.8%search→purchase rate — share of searches ending in a sale
Market size
Bad$17K$17K/yr · 82K searches
According to Flapen's Amazon United States niche tracking, custom flask is a $17K/yr Amazon United States market (82K searches/yr). The top 5 brands hold 59% of demand. Demand peaks in Dec. Verdict: Skip it — 48/100.
Data updated Aug 6, 2026 · scored weekly · How we score niches
custom flask market data
- Units sold / yr
- 750–1K
- avg 0–100/product
- Revenue / yr
- $19K–$26K
- units × avg price
- Conversion rate
- 0.8%
- Avg BSR
- #280
- Page quality
- 0%
- Prime
- 47%
- Sponsored
- 94%
- Out of stock
- 6.4%
- Avg brand age
- 47 months
- Avg seller age
- 166 days
Competition & brand share
Clicks spread well past the top 5 (39% combined) — an open shelf where new products get seen.Brands
27 rising
Sellers
34
Top-5 brand share
59%
Top 20: 94%
Top-5 click share
39%
Top 20: 77%
Open market
34%
- Baderke18%
- UNITED CRAFT SUPPLIES17%
- ELEGANTPARK10%
- CARAKNOTS7%
- QSZ7%
- Generic7%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +1.3% search growth over the last 90 days.Peak months: Dec · busiest ÷ quietest = 3.1×
Top custom flask search terms
- custom flask24K/yr
- personalized flask16K/yr
- personalized flask for men11K/yr
- custom flask for men10K/yr
- engraved flask10K/yr
- engraved flask for men7K/yr
- customized flask4K/yr
Top custom 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 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Baderke Personalized Groomsmen Flask 8 oz Stainless Steel Monogram Hip Flask for Men Leather Birthday Gift for Dad Grandpa Wedding Anniversary(Letter B)
Baderke$10.364.6★373 rev
ELEGANTPARK Flask for Men Groomsmen Gift for Wedding Initial Letter J 8oz
ELEGANTPARK$17.814.5★72 rev
CARAKNOTS Leather Flask for Men Groomsmen Gifts for Wedding Initial J 8 oz
CARAKNOTS$17.974.6★57 rev
Custom Flask for Men Personalized Engraved Hip Flasks with Photo Text 8 Oz
QSZ$13.934.5★30 rev
Personalized Leather Flask Groomsmen Engraved Hip Custom Monogrammed for Groomsmen Groomsman
Generic$13.064.8★78 rev
Newest
by launch date
Personalized Flask for Men 8oz with Custom Photo Icon & Text Engraved
WFE$11.321 rev
Personalized 7oz 304 Stainless Steel Hip Flask Custom Laser Engraved Flask for Men & Women Double-Sided Design with Custom Logo Text & Images for Wedding Birthday Fathers Day GiftSilver
SHISANYI$28.115 rev
Custom Flask for Men Personalized Engraved Hip Flasks with Photo Text 8 Oz
QSZ$13.9330 rev
Personalized Hip Flasks Custom for Men: Engraved with Name & Letters Leather 8oz Hip Flasks - Gifts for Wedding Bachelor Party Christmas Birthday - for Him Father Husband Boyfriend
Gemcrafting$18.1820 rev
CARAKNOTS Leather Flask for Men Groomsmen Gifts for Wedding Initial J 8 oz
CARAKNOTS$17.9757 rev
Trending
90-day click momentumPersonalized Hip Flasks Custom for Men: Engraved with Name & Letters Leather 8oz Hip Flasks - Gifts for Wedding Bachelor Party Christmas Birthday - for Him Father Husband Boyfriend
Gemcrafting$18.184.4★
Personalized Flask for Men 8oz with Custom Photo Icon & Text Engraved
WFE$11.325.0★
Personalized Hip Flask - Engraved Leatherette 6 Oz Best Man & Groomsmen Proposal Gifts Wedding Party Favors - Chestnut #4
UNITED CRAFT SUPPLIES$22.914.8★
Personalized Hip Flasks Set of 6 - Engraved Leatherette 6 Oz Best Man & Groomsmen Proposal Gifts Wedding Party Favors - Chestnut #4
UNITED CRAFT SUPPLIES$79.934.8★
Groomsmen Gifts Set of 6 Personalized Hip Flasks Groomsmen Proposal 6 Oz Engraved Leatherette Flasks for Men Best Man Gifts for Wedding Groomsmen Gifts for Wedding - Chestnut #3
UNITED CRAFT SUPPLIES$79.944.6★
What buyers say about custom flask
What buyers praise and complain about, mined from review topics.What buyers love
“Well made flask”
“Great value”
“That said, it is solidly put together and fits comfortably into a pocket”
“Easy to make a personalized gift”
“As expected”
“Solid flask”
“Doesn't leak”
“Fortunately, I have another from my kitchen that makes it much easier”
“Very efficient”
“cute durable”
What buyers complain about
“Seems like it leeches something from container”
“Product leaks & rust”
“Cheaply made”
“Cap is a little fiddly sometimes”
“It turned the liquor BLACK”
“The 8 oz size is a big bigger than most pockets”
“the picture felt misleading”
“the glass itself is too fragile”
“Hard to get engraved”
“destroyed in only weeks”
Top return reasons
Common questions
- Is custom flask profitable to sell on Amazon United States?
- The niche generates $17K/yr across 49 tracked products. 0 of 12 products launched in the last 360 days are still selling. 90-day search growth is +1.3%. Flapen's verdict: Skip it (48/100).
- How competitive is the custom flask niche?
- 27 brands and 34 sellers compete. The top 5 products take 39% of clicks and top 5 brands hold 59% of demand.
- What do buyers complain about in custom flask?
- Top complaints mined from reviews: Leak-Proof, Rusts/Corrodes, Quality-Overall. The return rate is 1.9%.
- When does demand for custom flask peak?
- Demand peaks in Dec; the busiest month runs 3.1× the quietest.
- What does it cost to enter the custom flask niche?
- Listings span $8.32–$91.07; the average listing price is $25.55 (sweet spot $15–$100). The average incumbent carries 343 reviews — the moat a new listing must climb.