---
title: "Custom Flask — $17K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/home-kitchen/custom-flask"
last_updated: "2026-08-10T06:32:10.151Z"
locale: en
meta:
description: "Niche score 48/100 · $17K/yr market · 82K searches/yr · $25.55 avg price. Doesn't clear our bar today. Data updated Aug 2026."
"og:description": "Niche score 48/100 · $17K/yr market · 82K searches/yr · $25.55 avg price. Doesn't clear our bar today. Data updated Aug 2026."
"og:title": "Custom Flask — $17K/yr Amazon US Niche (2026) - Flapen"
---
# **custom flask**
**Skip it**
A small market ($17K/yr) — this niche doesn't clear our bar today.
Market size 4Growth 27Conversion 10Competition 76Returns 76Price range 89Avg price 95Brand share 76Review moat 83Quality gap 21
**Avg price**
**Incredible****$25.55**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$8.32–$91.07**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Great****343.24**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Great****39%**
top-5 click share — an open shelf
**Brand share**
**Great****59%**
top-5 brand share — no brand owns this niche
**Returns**
**Great****1.9%**
return rate — above 5% kills the launch gate
**Growth**
**Okay****+1.3%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Bad****0.8%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$17K**
$17K/yr · 82K searches
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")
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 ~~](https://flapen.com/research/methodology)
## **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.
5K3KHoliday '24Spike '25Holiday '25 seasonSepDecMarJunAugNovMarMay
Peak months: Dec · busiest ÷ quietest = 3.1×
[**Open Trend **](https://flapen.com/research/us/home-kitchen/custom-flask/trend)
## **Top custom flask search terms**
- **custom flask**24K/yr+8.6%0.7% conv. - **personalized flask**16K/yr+0.2%0.8% conv. - **personalized flask for men**11K/yr+7.6%0.8% conv. - **custom flask for men**10K/yr+7.2%1.0% conv. - **engraved flask**10K/yr-9.2%0.9% conv. - **engraved flask for men**7K/yr-13.7%0.6% conv. - **customized flask**4K/yr-16.2%0.5% conv. [**All search terms **](https://flapen.com/research/us/home-kitchen/custom-flask/search-terms)
## **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.
0%3%$5136%$1K9%$2K12%$2K1101001K10K Reviews — right = deep review moatMarket 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.
### **Top sellers**
by 90-day click share
[1**Baderke Personalized Groomsmen Flask 8 oz Stainless Steel Monogram Hip Flask for Men Leather Birthday Gift for Dad Grandpa Wedding Anniversary(Letter B)**Baderke**$10.36**4.6★373 rev](https://www.amazon.com/dp/B0CTTMJWGT) [2**ELEGANTPARK Flask for Men Groomsmen Gift for Wedding Initial Letter J 8oz**ELEGANTPARK**$17.81**4.5★72 rev](https://www.amazon.com/dp/B0C6K11P1G) [3**CARAKNOTS Leather Flask for Men Groomsmen Gifts for Wedding Initial J 8 oz**CARAKNOTS**$17.97**4.6★57 rev](https://www.amazon.com/dp/B0DC6QCRRX) [4**Custom Flask for Men Personalized Engraved Hip Flasks with Photo Text 8 Oz**QSZ**$13.93**4.5★30 rev](https://www.amazon.com/dp/B0FGJRKCB3) [5**Personalized Leather Flask Groomsmen Engraved Hip Custom Monogrammed for Groomsmen Groomsman**Generic**$13.06**4.8★78 rev](https://www.amazon.com/dp/B0CZYLX3SJ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Personalized Flask for Men 8oz with Custom Photo Icon & Text Engraved**WFE**$11.32**1 rev3mo ago](https://www.amazon.com/dp/B0GYWR6ZYM) [**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**$28.11**5 rev7mo ago](https://www.amazon.com/dp/B0G92SV493) [**Custom Flask for Men Personalized Engraved Hip Flasks with Photo Text 8 Oz**QSZ**$13.93**30 rev1y ago](https://www.amazon.com/dp/B0FGJRKCB3) [**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**$18.18**20 rev1y ago](https://www.amazon.com/dp/B0DMVVPS5H) [**CARAKNOTS Leather Flask for Men Groomsmen Gifts for Wedding Initial J 8 oz**CARAKNOTS**$17.97**57 rev1y ago](https://www.amazon.com/dp/B0DC6QCRRX)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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**$18.18**4.4★**▲ 335%**](https://www.amazon.com/dp/B0DMVVPS5H) [**Personalized Flask for Men 8oz with Custom Photo Icon & Text Engraved**WFE**$11.32**5.0★**▲ 333%**](https://www.amazon.com/dp/B0GYWR6ZYM) [**Personalized Hip Flask - Engraved Leatherette 6 Oz Best Man & Groomsmen Proposal Gifts Wedding Party Favors - Chestnut #4**UNITED CRAFT SUPPLIES**$22.91**4.8★**▲ 274%**](https://www.amazon.com/dp/B089WJR15J) [**Personalized Hip Flasks Set of 6 - Engraved Leatherette 6 Oz Best Man & Groomsmen Proposal Gifts Wedding Party Favors - Chestnut #4**UNITED CRAFT SUPPLIES**$79.93**4.8★**▲ 260%**](https://www.amazon.com/dp/B089WJGKT2) [**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**$79.94**4.6★**▲ 238%**](https://www.amazon.com/dp/B089WKNFKC)
**~~View all trending →~~**
## **What buyers say about custom flask**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**23%
*“Well made flask”*
**Value For Money**15%
*“Great value”*
**Size-Overall**12%
*“That said, it is solidly put together and fits comfortably into a pocket”*
**Gifting Purpose**11%
*“Easy to make a personalized gift”*
**Advertised Vs Actual Product**6%
*“As expected”*
**Strength**5%
*“Solid flask”*
**Leak-Proof**4%
*“Doesn't leak”*
**Ease Of Use**4%
*“Fortunately, I have another from my kitchen that makes it much easier”*
**Efficiency**3%
*“Very efficient”*
**Durability**2%
*“cute durable”*
### **What buyers complain about **
**Leak-Proof**18%
*“Seems like it leeches something from container”*
**Rusts/Corrodes**9%
*“Product leaks & rust”*
**Quality-Overall**9%
*“Cheaply made”*
**Ease Of Use**8%
*“Cap is a little fiddly sometimes”*
**Color Fading/Discoloration**6%
*“It turned the liquor BLACK”*
**Size-Overall**5%
*“The 8 oz size is a big bigger than most pockets”*
**Advertised Vs Actual Product**3%
*“the picture felt misleading”*
**Strength**3%
*“the glass itself is too fragile”*
**Engraving/Paint/Sublimation**3%
*“Hard to get engraved”*
**Durability**2%
*“destroyed in only weeks”*
### **Top return reasons **
**Size-Overall**38%
**Quality-Overall**7%
**Weight Heavy**7%
**Value For Money**7%
**Leak-Proof**7%
**Advertised Vs Actual Product**6%
**Ease Of Use**5%
**Functionality-Overall**4%
**Product Condition**4%
**Color**2%
## **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.
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