Is stanley 20 oz straw profitable to sell on Amazon United States?

The niche generates $138K/yr across 19 tracked products. 3 of 5 products launched in the last 360 days are still selling. 90-day search growth is -7.0%. Flapen's verdict: Skip it (40/100).

How competitive is the stanley 20 oz straw niche?

9 brands and 24 sellers compete. The top 5 products take 61% of clicks and top 5 brands hold 90% of demand.

What do buyers complain about in stanley 20 oz straw?

Top complaints mined from reviews: Size-Overall, Quality-Overall, Advertised Vs Actual Product. The return rate is 2.8%.

When does demand for stanley 20 oz straw peak?

Demand is steady year-round — the busiest month runs 1.5× the quietest.

What does it cost to enter the stanley 20 oz straw niche?

Listings span $3.96–$33.46; the average listing price is $16.56 (sweet spot $15–$100). The average incumbent carries 18,590 reviews — the moat a new listing must climb.

stanley 20 oz straw

Skip it

A deep review moat (18,590 avg reviews) — this niche doesn't clear our bar today.

Avg price

Great$16.56

avg listing price — sweet spot $15–$100

Conversion

Great7.3%

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

Price range

Good$3.96–$33.46

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

Returns

Good2.8%

return rate — above 5% kills the launch gate

Competition

Okay61%

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

Market size

Okay$138K

$138K/yr · 114K searches

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Brand share

Okay90%

top-5 brand share — brands hold most of the demand

Growth

Bad-7.0%

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

Review moat

Bad18,590

avg incumbent reviews — the moat a new listing must climb

According to Flapen's Amazon United States niche tracking, stanley 20 oz straw is a $138K/yr Amazon United States market (114K searches/yr). The top 5 brands hold 90% of demand. Verdict: Skip it — 40/100.

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

stanley 20 oz straw market data

Units sold / yr: 6K–8K; avg 250–500/product
Revenue / yr: $99K–$132K; units × avg price
Conversion rate: 7.3%
Avg BSR: #219
Page quality: 0%
Prime: 100%
Sponsored: 53%
Out of stock: 1.6%
Avg brand age: 30 months
Avg seller age: 131 days

Competition & brand share

The top 5 products take 61% of clicks — established leaders, but buyers still shop beyond them.

Brands

9 falling

Sellers

Top-5 brand share

90%

Top 20: 100%

Top-5 click share

61%

Top 20: 100%

Open market

STANLEY65%
ALINK9%
KLOWOAH5%
GL-Auking5%
Bubrike5%
Snowfall3%
Open — no brand owns it (3 brands, 7%)

Demand & seasonality

Weekly Amazon search volume, last 99 weeks — -7.0% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.5×

Open Trend

Top stanley 20 oz straw search terms

stanley 20 oz flip straw17K/yr +18.5%2.2% conv.
stanley iceflow 20 oz14K/yr -4.5%0.7% conv.
stanley 20 oz straw13K/yr -32.8%9.7% conv.
stanley straw 20 oz7K/yr +5.3%10.3% conv.
20 oz stanley straw8K/yr -0.7%10.5% conv.
20oz stanley straw5K/yr -6.2%11.9% conv.
stanley ice flow 20 oz10K/yr -39.7%0.8% conv.
stanley flip straw 20 oz6K/yr -15.0%1.2% conv.
stanley straws 20 oz5K/yr -9.0%11.2% conv.
stanley flip straw tumbler 20 oz4K/yr -4.6%0.9% conv.

All search terms

Top stanley 20 oz straw 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 19 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Stanley Quencher Tumbler Straws for 14 or 20 oz | Reusable Replacement Straws for Tumbler with Handle | Stainless Steel Drinking Cup Accessory | BPA-Free | No color

STANLEY$9.174.8★8,137 rev

STANLEY$27.814.7★202 rev

STANLEY$28.404.7★71,105 rev

ALINK Clear Replacement Straws for Stanley 20oz 14oz Tumble 6 Pack Reusable Straws for Stanley Quencher 20oz 14oz Cups with Cleaning Brush Dishwasher Safe and BPA Free

ALINK$5.934.7★1,771 rev

Replacement Straw for Stanley Iceflow 20oz(Only) Reusable Clear Drinking Straw with Straw Cleaner Brush Compatible with Stanley IceFlow Flip 20oz Stainless Steel Tumbler

GL-Auking$6.144.3★189 rev

Newest

by launch date

STANLEY$26.7318,711 rev

3mo ago

STANLEY$28.4071,105 rev

6mo ago

STANLEY$33.4618,711 rev

6mo ago

KLOWOAH Replacement Straws Compatible With Stanley 20oz Quencher H2.0 Tumbler with Handle Tumbler with 1 Brush (6 Pack for 20oz)

KLOWOAH$4.7140 rev

11mo ago

KLOWOAH Replacement Straws Compatible With Stanley 14oz Quencher H2.0 Tumbler with Handle Tumbler with 1 Brush (6 Pack for 14oz)

KLOWOAH$4.8440 rev

11mo ago

What buyers say about stanley 20 oz straw

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

What buyers love

Quality-Overall18%

“Great made product”

Size-Overall17%

“Fit well”

Color10%

“Happy with the color”

Leak-Proof9%

“Does not leak”

Durability7%

“Durable and sturdy”

Advertised Vs Actual Product6%

“The cup is as advertised”

Value For Money4%

“Great little cup for a good price”

Handle Quality4%

“great easy to hold handle”

Ease Of Cleaning3%

“Easy to clean”

Strength3%

“sturdy overall a good buy”

What buyers complain about

Size-Overall33%

“Way short”

Quality-Overall12%

“Cheap”

Advertised Vs Actual Product8%

“The picture was very deceiving”

Durability7%

“Most of these broke within months of use”

Ease Of Use5%

“Too hard to open”

Leak-Proof5%

“NOT leak proof”

Color4%

“just sorry the colour was disappointing to her”

Heating3%

“Ice does not stay cold and cold”

Material Quality3%

“Feels like very cheap plastic not like the straw that came with it”

Thickness3%

“Too thin”

Top return reasons

Size-Overall59%

Color8%

Ease Of Use7%

Advertised Vs Actual Product5%

Value For Money3%

Functionality-Overall2%

Leak-Proof2%

Weight Heavy2%

Product Condition2%

Defective Material/Parts2%

Common questions

Is stanley 20 oz straw profitable to sell on Amazon United States?: The niche generates $138K/yr across 19 tracked products. 3 of 5 products launched in the last 360 days are still selling. 90-day search growth is -7.0%. Flapen's verdict: Skip it (40/100).
How competitive is the stanley 20 oz straw niche?: 9 brands and 24 sellers compete. The top 5 products take 61% of clicks and top 5 brands hold 90% of demand.
What do buyers complain about in stanley 20 oz straw?: Top complaints mined from reviews: Size-Overall, Quality-Overall, Advertised Vs Actual Product. The return rate is 2.8%.
When does demand for stanley 20 oz straw peak?: Demand is steady year-round — the busiest month runs 1.5× the quietest.
What does it cost to enter the stanley 20 oz straw niche?: Listings span $3.96–$33.46; the average listing price is $16.56 (sweet spot $15–$100). The average incumbent carries 18,590 reviews — the moat a new listing must climb.