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Stainless Steel Cups for Kids

brand-locked demand (top 5 brands take 100% of clicks) — Stainless Steel Cups for Kids doesn't clear our bar today.

Flapen Score

48
Skip it

Top 33% of 2,472 Baby Products niches · +4 vs the category median of 44

Market size 84Growth 17Conversion 35Competition 69Returns 77Price range 65Avg price 80Brand share 0Review moat 14Quality gap 32
This niche Category average · 2,472 niches

Is Stainless Steel Cups for Kids profitable on Amazon?

According to Flapen's Amazon United States niche tracking, Stainless Steel Cups for Kids is a $1.4M/yr Amazon United States market (2.9M searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Feb–Mar–Apr–May–Jun. Verdict: Skip it — 48/100.

Stainless Steel Cups for Kids: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Not really. Search demand moved -15.2% over the last 90 days and 2.8% of searches end in a purchase.

$1.4M

revenue / yr

Units sold / yr80K
Search volume / yr-15.2%2.9M
Conversion rate2.8%
Avg price$17.12

Who owns the niche?

The top 5 brands hold 100% of demand, so 0% of the market is open.

0%

open market share

Brands · sellers4 · 35
Top-5 product click share43%
Open market0%
Avg brand age36 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.6★ — the gap to enter on.

0/100

page quality · 41 products

Sponsored placement93%
New entrants (1y)2· 2 succeeded
Avg rating4.6★
Avg reviews23,453

Top Stainless Steel Cups for Kids products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

The top 5 products take 43% of clicks — established leaders, but buyers still shop beyond them.

$0$55K$110K$165K$220K1001K10K100K1.0M Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

4 falling

Sellers

35

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

43%

Top 20: 80%

Open market

0%

  • Zak Designs78%
  • Owala21%
  • Knuckleheads Little Threads1%
  • Simple Modern1%
  • Open — no brand owns it (0%)

Stainless Steel Cups for Kids demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume2.9MCVR2.8%Products41Brands4Top 5 Brands100%OOS Rate1.4%Rating4.6★Reviews23,453Avg BSR#58
80K60KPrime Day '24Spike '24Holiday '24Spike '25Prime Day '25Black Friday '25Holiday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan, Feb, Mar, Apr, May, Jun · busiest ÷ quietest = 4.3×

Top Stainless Steel Cups for Kids search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

  • zak toddler cup with straw938K/yr
  • zak cups310K/yr
  • zak180K/yr
  • stainless steel toddler cups129K/yr
  • zak cups for toddlers194K/yr
  • zak stainless steel cups for kids148K/yr
  • zak straw cup127K/yr
  • owala kids cup125K/yr
  • zak cup84K/yr
  • owala sippy cup109K/yr

What reviews say buyers love and hate about Stainless Steel Cups for Kids

What buyers mention most, as a share of all reviews.

What buyers love

77% of reviews
Leak-Proof27%

Doesn't spill

Ease Of Cleaning11%

Easy to wash

Quality-Overall8%

Great quality cups

Size-Overall7%

Love the size

Color5%

Vibrant colors

What buyers complain about

73% of reviews
Leak-Proof36%

They leak

Durability14%

broke quickly

Ease Of Cleaning5%

Difficult to clean

Quality-Overall4%

Inconsistency in product quality

Design-Overall4%

Design rubs off easily

Stainless Steel Cups for Kids return rate & reasons

Why buyers send it back, as a share of all return requests.

1.9%

Return rate

44%

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1Size-Overall
24%
2Leak-Proof
21%
3Color
10%
4Value For Money
7%
5Functionality-Overall
5%

Common Stainless Steel Cups for Kids questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores Stainless Steel Cups for Kids 48/100 on Amazon United States — Skip it. The niche generates $1.4M/yr across 41 tracked products. 2 of 2 products launched in the last 360 days are still selling. Search demand moved -15.2% over the last 90 days.
Search demand for Stainless Steel Cups for Kids on Amazon United States peaks in Jan–Feb–Mar–Apr–May–Jun, where the busiest month runs 4.3× the quietest.