Is costumes for kids profitable to sell on Amazon United States?

The niche generates $570K/yr across 100 tracked products. 11 of 17 products launched in the last 360 days are still selling. 90-day search growth is -27.5%. Flapen's verdict: Worth a look (52/100).

How competitive is the costumes for kids niche?

64 brands and 110 sellers compete. The top 5 products take 22% of clicks and top 5 brands hold 33% of demand.

What do buyers complain about in costumes for kids?

Top complaints mined from reviews: Quality-Overall, Size-Overall, Durability. The return rate is 4.7%.

When does demand for costumes for kids peak?

Demand peaks in Sep–Oct–Nov; the busiest month runs 36.3× the quietest.

What does it cost to enter the costumes for kids niche?

Listings span $9.95–$126.46; the average listing price is $38.18 (sweet spot $15–$100). The average incumbent carries 2,546 reviews — the moat a new listing must climb.

costumes for kids

Worth a look

Shows no brand lock-in (top 5 brands take 33% of clicks), but weak search conversion (0.4%) keeps it on the watch list.

Brand share

Incredible33%

top-5 brand share — no brand owns this niche

Avg price

Incredible$38.18

avg listing price — sweet spot $15–$100

Competition

Great22%

top-5 click share — an open shelf

Price range

Good$9.95–$126.46

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

Market size

Good$570K

$570K/yr · 3.7M searches

Review moat

Okay2,545.98

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Returns

Okay4.7%

return rate — above 5% kills the launch gate

Growth

Bad-27.5%

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

Conversion

Bad0.4%

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

Signals No Dominant Brand

According to Flapen's Amazon United States niche tracking, costumes for kids is a $570K/yr Amazon United States market (3.7M searches/yr). The top 5 brands hold 33% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Worth a look — 52/100.

Data updated Jul 10, 2026 · scored weekly · How we score niches

costumes for kids market data

Units sold / yr: 13K–15K; avg 0–100/product
Revenue / yr: $477K–$573K; units × avg price
Conversion rate: 0.4%
Avg BSR: #817
Page quality: 0%
Prime: 99%
Sponsored: 90%
Out of stock: 7.8%
Avg brand age: 40 months
Avg seller age: 153 days

Competition & brand share

Clicks spread well past the top 5 (22% combined) — an open shelf where new products get seen.

Brands

64 rising

Sellers

110

Top-5 brand share

33%

Top 20: 69%

Top-5 click share

22%

Top 20: 52%

Open market

63%

YuanLu10%
Jazwares Costume Play7%
Marvel7%
Yavakoor5%
Davvew4%
Rubies4%

Demand & seasonality

Weekly Amazon search volume, last 88 weeks — -27.5% search growth over the last 90 days.

Peak months: Sep, Oct, Nov · busiest ÷ quietest = 36.3×

Open Trend

Top costumes for kids search terms

kids costumes778K/yr -21.0%0.4% conv.
costumes for kids672K/yr -19.1%0.3% conv.
boys costumes397K/yr -39.4%0.5% conv.
costumes for boys443K/yr -59.4%0.4% conv.
disfraces para nios138K/yr -1.1%0.1% conv.
kids costume210K/yr -28.1%0.2% conv.
costume for kids120K/yr -29.3%0.3% conv.
trajes25K/yr +39.6%0.0% conv.
costume kids154K/yr -35.8%0.3% conv.
disfraz para nios81K/yr +15.2%0.1% conv.

All search terms

Top costumes for kids 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 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Marvel Unisex Child Kids 2-piece Snug-fit Cotton Pajama Set Spider Costume 6 US

Marvel$13.734.7★3,269 rev

YuanLu Kids Suits for Boys Navy Blue Boy Suit Slim Fit Ring Bearer Outfit Wedding Guest Dresswear Toddler Tuxedo Size 2T

YuanLu$45.704.4★7,269 rev

Davvew Little Girls Dress Sequin Pink Rainbow Dress Flower Girl Dress Easter Dress Light up Princess Dresses for Toddler Girls Kids Costume for Brithday Wedding Party

Davvew$34.494.6★208 rev

Marvel Integrated Spider-Man Official Youth Deluxe Zentai Costume - Deluxe Two-Way Stretch Spandex with Invisible Zippers and Wrist Openings for Added Convenience (M)

Jazwares Costume Play$42.564.5★1,853 rev

Elite Sports IBJJF Ultra Light BJJ Brazilian Jiu Jitsu Gi for Kids with Preshrunk Fabric and Free Belt (Black 1)

Elite Sports$43.464.8★5,654 rev

Newest

by launch date

Marvel Unisex Child Kids 2-piece Snug-fit Cotton Pajama Set Spider Costume 6 US

Marvel$13.733,269 rev

2mo ago

Jeowoqao Costumes for Kids Boys Dress up Clothes for Role Play Boys Muscle Chest Dress up Costumes with Policeman Fireman Costume for Toddler Boy 3 4 5 6 Years Christmas Birthday Gifts

Jeowoqao$28.7987 rev

10mo ago

Disney Store Official Boys Halloween Costumes for Play - Premium Disney Cosplay Dress Up Outfits for Children- Darth Vader Costume with Lights and Sounds for Kids - Size 7/8

Disney Store$57.36163 rev

10mo ago

AmazingSea Boys Suit Black Suits for Boys Size 8 for Wedding Graduation Formal Tuxedo Set for Big Kids

AmazingSea$50.26807 rev

1y ago

14Pcs Toddler Dress up Clothes Boys Dress up Costumes for Play Kids Dress up Set with Firefighter Construction Worker Chef Police Costume Toddler Boy Toys Christmas Birthday Gifts for 3-6 Years Old

Fedio$31.70280 rev

1y ago

What buyers say about costumes for kids

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

What buyers love

Quality-Overall19%

“A+ Quality”

Size-Overall18%

“Fit as expected”

Fun/Entertainment Experience12%

“Imaginative play”

Value For Money10%

“Good value for money”

Gifting Purpose6%

“Great gift”

Material Quality4%

“Material is soft”

Advertised Vs Actual Product3%

“Looks as pictured”

Ease Of Use3%

“Easy to use”

Durability3%

“very durable material”

Comfort-Overall2%

“They are comfortable”

What buyers complain about

Quality-Overall22%

“Cheap quality”

Size-Overall17%

“Little big”

Durability8%

“Breaks easily”

Material Quality5%

“it doesn't seem the material will last”

Value For Money5%

“The price is a little much”

Product Condition3%

“The item came used”

Advertised Vs Actual Product3%

“Not as advertised”

Stitch/Finish/Polish2%

“The seams are coming apart”

Strength2%

“Flimsy”

Strap/String Quality2%

“Purse strap broke first day”

Top return reasons

Size-Overall65%

Quality-Overall5%

Advertised Vs Actual Product4%

Material Quality4%

Length3%

Waist Fit2%

Sleeve Fit2%

Shoulder Fit2%

Value For Money2%

Product Condition2%

Common questions

Is costumes for kids profitable to sell on Amazon United States?: The niche generates $570K/yr across 100 tracked products. 11 of 17 products launched in the last 360 days are still selling. 90-day search growth is -27.5%. Flapen's verdict: Worth a look (52/100).
How competitive is the costumes for kids niche?: 64 brands and 110 sellers compete. The top 5 products take 22% of clicks and top 5 brands hold 33% of demand.
What do buyers complain about in costumes for kids?: Top complaints mined from reviews: Quality-Overall, Size-Overall, Durability. The return rate is 4.7%.
When does demand for costumes for kids peak?: Demand peaks in Sep–Oct–Nov; the busiest month runs 36.3× the quietest.
What does it cost to enter the costumes for kids niche?: Listings span $9.95–$126.46; the average listing price is $38.18 (sweet spot $15–$100). The average incumbent carries 2,546 reviews — the moat a new listing must climb.