---
title: "shark costume toddler — Niche Verdict: Skip it (41/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/clothing-shoes-jewelry/shark-costume-toddler"
last_updated: "2026-07-13T23:25:12.524Z"
locale: en
meta:
  description: "high returns (12.5%) — shark costume toddler doesn't clear our bar today."
  "og:description": "high returns (12.5%) — shark costume toddler doesn't clear our bar today."
  "og:title": "shark costume toddler — Niche Verdict: Skip it (41/100) | Amazon United States - Flapen"
---

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# **shark costume toddler**

**Skip it**

High returns (12.5%) — this niche doesn't clear our bar today.

Market size 2Growth 23Conversion 5Competition 81Returns 0Price range 82Avg price 95Brand share 76Review moat 68Quality gap 45

**Avg price**

**Incredible****$23.58**

avg listing price — sweet spot $15–$100

**Price range**

**Great****$10.90–$35.45**

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

**Competition**

**Great****34%**

top-5 click share — an open shelf

**Brand share**

**Great****59%**

top-5 brand share — no brand owns this niche

**Review moat**

**Good****791.03**

avg incumbent reviews — the moat a new listing must climb

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Growth**

**Bad****-4.0%**

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

**Conversion**

**Bad****0.4%**

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

**Market size**

**Bad****$6K**

$6K/yr · 69K searches

**Returns**

**Bad****12.5%**

return rate — above 6% kills the launch gate

## **Competition**

Clicks spread well past the top 5 (34% combined) — an open shelf where new products get seen.

**Brands**

**19 **▲rising

**Sellers**

**42**

**Top-5 brand share**

**59%**

**Open market**

**34%**

- HSCTEK18% - EraSpooky13% - Rubies10% - inkArts9% - LIOMENGZI8% - Coskidz7%

## **Product shelf**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%3%$1916%$3839%$57412%$7651101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

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

All 36 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![LIOMENGZI Toddler Baby Boy Hooded Shark Summer Outfit Funny T-Shirt Shorts Set Infant Shark Clothes 6 12 18 Months 2T 3T(Blue Shark 12-18 Months)](https://m.media-amazon.com/images/I/41q6uQK48tL.jpg)**LIOMENGZI Toddler Baby Boy Hooded Shark Summer Outfit Funny T-Shirt Shorts Set Infant Shark Clothes 6 12 18 Months 2T 3T(Blue Shark 12-18 Months)**LIOMENGZI**$13.24**4.6★138 rev](https://www.amazon.com/dp/B0F37VFKPL) [2![Shark Blanket Kids Shark Onesie for Kid Shark Costume Pajamas Kids Shark Blankets Hoodie Onesies](https://m.media-amazon.com/images/I/4123Zu2JvpL.jpg)**Shark Blanket Kids Shark Onesie for Kid Shark Costume Pajamas Kids Shark Blankets Hoodie Onesies**inkArts**$20.49**4.3★904 rev](https://www.amazon.com/dp/B0CLJ69TZC) [3![Coskidz Children Shark Costume Fish Grey Pink Yellow Blue Hoodie 3t 4t Boy Girl Halloween Birthday Party (S Gray)](https://m.media-amazon.com/images/I/31JEpmbGlfL.jpg)**Coskidz Children Shark Costume Fish Grey Pink Yellow Blue Hoodie 3t 4t Boy Girl Halloween Birthday Party (S Gray)**Coskidz**$21.25**4.6★464 rev](https://www.amazon.com/dp/B07M7SFYHJ) [4![HSCTEK Shark Onesie Costume Kids Toddler Baby Pajamas Cosplay Blanket 4T](https://m.media-amazon.com/images/I/41LwivJPd-L.jpg)**HSCTEK Shark Onesie Costume Kids Toddler Baby Pajamas Cosplay Blanket 4T**HSCTEK**$29.99**4.6★270 rev](https://www.amazon.com/dp/B0DB5BWX8R) [5![ALLAIBB Baby Infant Shark Costumes Outfit Cotton Romper Cute Jumpsuit Hooded Outwear for Toddler Baby Boys Girls 3-24M](https://m.media-amazon.com/images/I/31XzRKd0GuL.jpg)**ALLAIBB Baby Infant Shark Costumes Outfit Cotton Romper Cute Jumpsuit Hooded Outwear for Toddler Baby Boys Girls 3-24M**ALLAIBB**$22.28**4.7★613 rev](https://www.amazon.com/dp/B07HHQHN53)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![Summer Cotton Shirt 5t Boys Shark Print Funny Tops Toddler Kids Short Sleeve Graphic Grey Tee Shirts](https://m.media-amazon.com/images/I/51PJaLxdwvL.jpg)**Summer Cotton Shirt 5t Boys Shark Print Funny Tops Toddler Kids Short Sleeve Graphic Grey Tee Shirts**Kimoda**$10.90**48 rev5mo ago](https://www.amazon.com/dp/B0GJYNJCD9) [![TONWHAR Toddlers Animal Costume Unisex Babys Warm Halloween Outfits Kids Dress Up Jumpsuits Rompers(5T Blue Shark)](https://m.media-amazon.com/images/I/41ZSMGu4MkL.jpg)**TONWHAR Toddlers Animal Costume Unisex Babys Warm Halloween Outfits Kids Dress Up Jumpsuits Rompers(5T Blue Shark)**TONWHAR**$27.91**54 rev1y ago](https://www.amazon.com/dp/B0FBRNPGQ2) [![Spirit Halloween Toddler Shark Jumpsuit Costume Soft & Stylish Features an Attached Hood Zipper Closure Unisex Child Size 3T - 4T Standard Multicolor](https://m.media-amazon.com/images/I/31fHnNh6UFL.jpg)**Spirit Halloween Toddler Shark Jumpsuit Costume Soft & Stylish Features an Attached Hood Zipper Closure Unisex Child Size 3T - 4T Standard Multicolor**Spirit Halloween**$29.74**5 rev1y ago](https://www.amazon.com/dp/B0FB3QMN17) [![Newleafly Unisex Kids Shark Onesie Pajamas Soft Cozy Animal Onesie Halloween Cosplay Costume](https://m.media-amazon.com/images/I/31p5-acGQGL.jpg)**Newleafly Unisex Kids Shark Onesie Pajamas Soft Cozy Animal Onesie Halloween Cosplay Costume**Newleafly**$24.64**15 rev1y ago](https://www.amazon.com/dp/B0F99J9VL3) [![DILUFUN Kids Boys Girls Shark Onesie Costume One Piece Pajamas Halloween Funny Animal Onesie Cosplay Costume Sleepwear Shark BU 4-5T](https://m.media-amazon.com/images/I/41fJR-ACiYL.jpg)**DILUFUN Kids Boys Girls Shark Onesie Costume One Piece Pajamas Halloween Funny Animal Onesie Cosplay Costume Sleepwear Shark BU 4-5T**DILUFUN**$29.73**479 rev1y ago](https://www.amazon.com/dp/B0F8HMCCLN)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![haikyuu Kid Shark Costume Grey Pink Yellow Blue Fish Hoodie Boy Girl Halloween Birthday Party Dress Up (blue Large)](https://m.media-amazon.com/images/I/31-FFTQrODL.jpg)**haikyuu Kid Shark Costume Grey Pink Yellow Blue Fish Hoodie Boy Girl Halloween Birthday Party Dress Up (blue Large)**haikyuu**$21.86**3.6★**▲ 1000%**](https://www.amazon.com/dp/B0G6F9CC4K) [![haikyuu Kid Shark Costume Grey Pink Yellow Blue Fish Hoodie Boy Girl Halloween Birthday Party Dress Up (pink Small)](https://m.media-amazon.com/images/I/41rU6O5+iYL.jpg)**haikyuu Kid Shark Costume Grey Pink Yellow Blue Fish Hoodie Boy Girl Halloween Birthday Party Dress Up (pink Small)**haikyuu**$22.19**3.6★**▲ 1000%**](https://www.amazon.com/dp/B0G6FCJ932) [![haikyuu Kid Shark Costume Grey Pink Yellow Blue Fish Hoodie Boy Girl Halloween Birthday Party Dress Up (blue Small)](https://m.media-amazon.com/images/I/31-FFTQrODL.jpg)**haikyuu Kid Shark Costume Grey Pink Yellow Blue Fish Hoodie Boy Girl Halloween Birthday Party Dress Up (blue Small)**haikyuu**$21.60**3.6★**▲ 1000%**](https://www.amazon.com/dp/B0G6FFR4PM) [![HSCTEK Shark Onesie Costume Kids Baby Pajamas Cosplay Sleepwear Clothes 16](https://m.media-amazon.com/images/I/41nv4MHKU5L.jpg)**HSCTEK Shark Onesie Costume Kids Baby Pajamas Cosplay Sleepwear Clothes 16**HSCTEK**$29.17**4.6★**▲ 1000%**](https://www.amazon.com/dp/B0DB1WDGQC) [![HSCTEK Shark Onesie Costume Kids Toddler Baby Pajamas Pjs Clothes 345T](https://m.media-amazon.com/images/I/41LwivJPd-L.jpg)**HSCTEK Shark Onesie Costume Kids Toddler Baby Pajamas Pjs Clothes 345T**HSCTEK**$31.67**4.6★**▲ 1000%**](https://www.amazon.com/dp/B0DB1V89FL)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — -4.0% search growth over the last 90 days.

10K6KSpike '24Holiday '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay

Peak months: Sep, Oct · busiest ÷ quietest = 74.7×

## **Reviews**

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

### **What buyers love **

**Size-Overall**29%

*“Fit well”*

**Soft Feel**14%

*“It is very soft and comfortable”*

**Quality-Overall**9%

*“quality is great”*

**Comfort-Overall**9%

*“comfortable”*

**Gifting Purpose**7%

*“Best Xmas gift of the year”*

**Warmth**4%

*“Its warm”*

**Ease Of Use**2%

*“very easy to get on”*

**Fun/Entertainment Experience**2%

*“Its a very fun onesie”*

**Thickness**2%

*“Thickness is just right”*

**Durability**2%

*“holding up well”*

### **What buyers complain about **

**Size-Overall**29%

*“Way too small”*

**Gap/Hole**14%

*“I have bought this twice both times it has come with holes in it”*

**Durability**13%

*“it ripped 3 different times”*

**Quality-Overall**9%

*“Unfortunately, the overall construction feels extremely cheap”*

**Stitch/Finish/Polish**5%

*“The seams are all coming apart”*

**Thickness**4%

*“Its thin and cheap”*

**Allergies**4%

*“Itchy”*

**Zipper Quality**4%

*“Zipper broke on the first wash”*

**Advertised Vs Actual Product**2%

*“Product description was way off”*

**Touch/Button Controls**1%

*“The plastic button kept unsnapping”*

### **Top return reasons **

**Size-Overall**56%

**Length**15%

**Gap/Hole**6%

**Stitch/Finish/Polish**4%

**Material Quality**3%

**Advertised Vs Actual Product**2%

**Sleeve Fit**2%

**Arm Fit**1%

**Feet Fit**1%

**Durability**1%