Is sanrio costume profitable to sell on Amazon United States?

The niche generates $4K/yr across 66 tracked products. 1 of 15 products launched in the last 360 days are still selling. 90-day search growth is -2.8%. Flapen's verdict: Skip it (42/100).

How competitive is the sanrio costume niche?

32 brands and 53 sellers compete. The top 5 products take 31% of clicks and top 5 brands hold 58% of demand.

What do buyers complain about in sanrio costume?

Top complaints mined from reviews: Size-Overall, Quality-Overall, Material Quality. The return rate is 8.3% — above our launch gate.

When does demand for sanrio costume peak?

Demand peaks in Sep–Oct–Nov; the busiest month runs 15.9× the quietest.

What does it cost to enter the sanrio costume niche?

Listings span $8.91–$112.30; the average listing price is $37.25 (sweet spot $15–$100). The average incumbent carries 364 reviews — the moat a new listing must climb.

sanrio costume

Skip it

A small market ($4K/yr) — this niche doesn't clear our bar today.

Avg price

Incredible$37.25

avg listing price — sweet spot $15–$100

Competition

Great31%

top-5 click share — an open shelf

Review moat

Great364.39

avg incumbent reviews — the moat a new listing must climb

Price range

Great$8.91–$112.30

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

Brand share

Great58%

top-5 brand share — no brand owns this niche

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Growth

Bad-2.8%

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

Returns

Bad8.3%

return rate — above 5% kills the launch gate

Conversion

Bad0.1%

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

Market size

Bad$4K

$4K/yr · 84K searches

Signals High Returns

According to Flapen's Amazon United States niche tracking, sanrio costume is a $4K/yr Amazon United States market (84K searches/yr). The top 5 brands hold 58% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 42/100.

Data updated Jul 21, 2026 · scored weekly · How we score niches

sanrio costume market data

Units sold / yr: 100–250; avg 0–100/product
Revenue / yr: $4K–$9K; units × avg price
Conversion rate: 0.1%
Avg BSR: #54,533
Page quality: 0%
Prime: 85%
Sponsored: 80%
Out of stock: 20.3%
Avg brand age: 34 months
Avg seller age: 169 days

Competition & brand share

Clicks spread well past the top 5 (31% combined) — an open shelf where new products get seen.

Brands

32 rising

Sellers

Top-5 brand share

58%

Top 20: 91%

Top-5 click share

31%

Top 20: 63%

Open market

37%

Hello Kitty20%
SAZAC18%
Bioworld8%
MEOKIM7%
Touchat5%
COSUSKET5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -2.8% search growth over the last 90 days.

Peak months: Sep, Oct, Nov · busiest ÷ quietest = 15.9×

Open Trend

Top sanrio costume search terms

cinnamoroll onesie14K/yr -8.7%0.4% conv.
kawaii onesie10K/yr -15.9%0.0% conv.
sanrio onesie14K/yr -3.9%0.1% conv.
sanrio costume18K/yr +12.0%0.1% conv.
cinnamoroll halloween costume6K/yr +100.4%0.0% conv.
cinnamoroll onesie kids3K/yr +4.4%0.0% conv.
cinnamon roll onesie3K/yr -14.0%0.0% conv.
sanrio onesie adult5K/yr -39.3%0.0% conv.
sanrio onesies1K/yr +62.1%0.0% conv.
sanrio halloween costume4K/yr +190.7%0.0% conv.

All search terms

Top sanrio costume 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

SAZAC Kigurumi - Cinnamoroll - Onesie Jumpsuit Halloween Costume

SAZAC$112.304.6★369 rev

Hello Kitty Sanrio One Piece Pajamas for Women Teens Kawaii Fleece Loungewear Soft Sleepwear Jumpsuit PJs Gifts for Women (2XL Pink)

Hello Kitty$37.894.8★169 rev

Womens Robe Button Bathrobe Womens Hoodie Coat Plush Warm Pajamas Long Sleepwear with Cute Pattern Pocket Pajamas (Cloud Dog XL)

MEOKIM$32.814.6★219 rev

Touchat Shark Blanket Hoodie Onesie Wearable Blankets Hoodie Adult Warm Flannel Throw Blanket Tail Sleeping Bag Cartoon Costume Shark Onesie Funny Gifts for Adults (Pink M)

Touchat$20.154.5★648 rev

Bioworld Hello Kitty & Friends Hooded Hello Kitty Kigurumi Cosplay Onesie Costume Union Suit-XL Blue

Bioworld$39.434.6★132 rev

Newest

by launch date

ZITEZHGO Womens Cute Bow Bunny Onesie Pajamas Fluffy Coral Fleece Warm Cozy for Indoor Outdoor Lounging (White Medium)

ZITEZHGO$36.275 rev

9mo ago

Hello Kitty Sanrio One Piece Pajamas for Women Teens Kawaii Fleece Loungewear Soft Sleepwear Jumpsuit PJs Gifts for Women (2XL Pink)

Hello Kitty$37.89169 rev

11mo ago

Hello Kitty Sanrio One Piece Pajamas for Girls Teens Kawaii Loungewear Zip Up Sleepwear Jumpsuit Lounge PJs Gifts for Girls (9-10 Years Pink Hello Kitty)

Hello Kitty$33.38259 rev

11mo ago

Hello Kitty Sanrio Robe for Women Teens Nightwear with Hood Pockets Kawaii Fleece Bathrobe Loungewear Gifts for Women (XL Blue Cinnamoroll)

Hello Kitty$37.85406 rev

12mo ago

Hello Kitty Sanrio One Piece Pajamas for Women Teens Kawaii Fleece Loungewear Soft Sleepwear Jumpsuit PJs Gifts for Women (M Red)

Hello Kitty$35.90169 rev

1y ago

What buyers say about sanrio costume

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

What buyers love

Warmth19%

“Definitely keeps u warm”

Comfort-Overall17%

“It is so comfortable”

Soft Feel14%

“The material itself is soft and cozy, and the design is really cute”

Size-Overall13%

“Fit perfect”

Gifting Purpose5%

“Perfect gift for anyone”

Quality-Overall5%

“The sweater quality wasnt bad though”

Value For Money5%

“Definitely worth the price”

Design-Overall3%

“Aesthetically pleasing”

Color2%

“Color is pretty”

Advertised Vs Actual Product1%

“Great just as shown”

What buyers complain about

Size-Overall25%

“Size is a little big”

Quality-Overall14%

“Cheaply made — purchase 2 and both ripped”

Material Quality8%

“Material”

Durability8%

“Falling apart”

Advertised Vs Actual Product6%

“Looks nothing like the picture, is thin and flimsy not plush like the picture”

Stitch/Finish/Polish4%

“There were several places on the seams that I had to sew together because they had either ripped apart or did not get sewn”

Value For Money2%

“its not worth 33 bucks”

Sleeve Fit1%

“Sleeves were too short etc”

Gap/Hole1%

“Arrived with a hole”

Ease Of Cleaning1%

“Dirty”

Top return reasons

Size-Overall61%

Length7%

Advertised Vs Actual Product5%

Material Quality4%

Color2%

Stitch/Finish/Polish2%

Thin2%