---
title: "baby shark costume — Niche Verdict: Skip it (44/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/clothing-shoes-jewelry/baby-shark-costume"
last_updated: "2026-07-13T23:27:32.660Z"
locale: en
meta:
  description: "weak search conversion (0.7%) — baby shark costume doesn't clear our bar today."
  "og:description": "weak search conversion (0.7%) — baby shark costume doesn't clear our bar today."
  "og:title": "baby shark costume — Niche Verdict: Skip it (44/100) | Amazon United States - Flapen"
---

Back to Flapen home

# **baby shark costume**

**Skip it**

Weak search conversion (0.7%) — this niche doesn't clear our bar today.

Market size 12Growth 25Conversion 8Competition 89Returns 24Price range 77Avg price 93Brand share 77Review moat 63Quality gap 28

**Avg price**

**Great****$22.08**

avg listing price — sweet spot $15–$100

**Competition**

**Great****26%**

top-5 click share — an open shelf

**Brand share**

**Great****58%**

top-5 brand share — no brand owns this niche

**Price range**

**Great****$8.51–$36.72**

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

**Review moat**

**Good****998.04**

avg incumbent reviews — the moat a new listing must climb

**Quality gap**

**Okay****4.6★**

avg incumbent rating — lower means beatable quality

**Growth**

**Bad****-0.2%**

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

**Returns**

**Bad****6.2%**

return rate — above 6% kills the launch gate

**Market size**

**Bad****$49K**

$49K/yr · 338K searches

**Conversion**

**Bad****0.7%**

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

## **Competition**

Clicks spread well past the top 5 (26% combined) — an open shelf where new products get seen.

**Brands**

**30 **▲rising

**Sellers**

**49**

**Top-5 brand share**

**58%**

**Open market**

**36%**

- HSCTEK26% - ALLAIBB10% - Markest8% - Rubies8% - Pinkfong6% - Generic6%

## **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%2%$9704%$2K6%$3K8%$4K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 70 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![Markest Onesie Unisex Adult Pajamas Animal Rose Red Shark Cosplay Costume Sleepwear L](https://m.media-amazon.com/images/I/31dvyi96L3L.jpg)**Markest Onesie Unisex Adult Pajamas Animal Rose Red Shark Cosplay Costume Sleepwear L**Markest**$24.10**4.4★1,881 rev](https://www.amazon.com/dp/B07V7D654F) [2![Rubies Baby Shark: Baby Shark Costume with Sound Chip for Toddlers Unisex Toddler](https://m.media-amazon.com/images/I/31HxdHFNlIL.jpg)**Rubies Baby Shark: Baby Shark Costume with Sound Chip for Toddlers Unisex Toddler**Rubies**$24.50**4.5★5,047 rev](https://www.amazon.com/dp/B07NNSMRMN) [3![Shark Baby Costume Infant Animal Onesie Toddler Cosplay Boy Girl 69](https://m.media-amazon.com/images/I/31db1vJk5qL.jpg)**Shark Baby Costume Infant Animal Onesie Toddler Cosplay Boy Girl 69**HSCTEK**$22.92**4.7★702 rev](https://www.amazon.com/dp/B099NJDZS2) [4![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**$20.87**4.7★613 rev](https://www.amazon.com/dp/B07HHRWMFJ) [5![Pinkfong Baby Shark Toddler Girls Glitter 2-Piece Knit Coverall and Headband Outfit Baby Shark Pink 3T](https://m.media-amazon.com/images/I/411oF31NppL.jpg)**Pinkfong Baby Shark Toddler Girls Glitter 2-Piece Knit Coverall and Headband Outfit Baby Shark Pink 3T**Pinkfong**$19.32**4.7★334 rev](https://www.amazon.com/dp/B09GZWFHT6)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![XYJKIDSES Inflatable Shark Costume for Kids Funny Halloween Blow Up Costumes for Boys Girls Cosplay Party Suit (Blue Shark)](https://m.media-amazon.com/images/I/31xhwO-u1hL.jpg)**XYJKIDSES Inflatable Shark Costume for Kids Funny Halloween Blow Up Costumes for Boys Girls Cosplay Party Suit (Blue Shark)**XYJKIDSES**$36.72**23 rev3mo ago](https://www.amazon.com/dp/B0GSJ6XNS1) [![XRTBMN Newborn Boy Turtle Romper Short Sleeve Waffle Striped Shark Bodysuit Summer Clothes Infant Baby Sea Animal Outfit (Blue Shark 12-18 Months)](https://m.media-amazon.com/images/I/41uhfJKL+fL.jpg)**XRTBMN Newborn Boy Turtle Romper Short Sleeve Waffle Striped Shark Bodysuit Summer Clothes Infant Baby Sea Animal Outfit (Blue Shark 12-18 Months)**XRTBMN**$13.55**10 rev5mo ago](https://www.amazon.com/dp/B0GGGVW73T) [![Spirit Halloween Toddler Pink Baby Shark Dress Costume Unisex Child Size 2T Standard Multicolor](https://m.media-amazon.com/images/I/31KEQS2gmhL.jpg)**Spirit Halloween Toddler Pink Baby Shark Dress Costume Unisex Child Size 2T Standard Multicolor**Spirit Halloween**$30.98**0 rev6mo ago](https://www.amazon.com/dp/B0GDG3159Q) [![Latnnut Newborn Clothes Infant Outfits Shark Print Short Sleeve Onesies & Pants Set Baby Boy Cotton Clothing Sets Blue 6-12 Months](https://m.media-amazon.com/images/I/41ylhPtp5jL.jpg)**Latnnut Newborn Clothes Infant Outfits Shark Print Short Sleeve Onesies & Pants Set Baby Boy Cotton Clothing Sets Blue 6-12 Months**Latnnut**$14.90**36 rev6mo ago](https://www.amazon.com/dp/B0GCMSB6CJ) [![3rd Birthday Baby Shark Shirt - 3 Year Old Outfit for Toddler Boy or Girl - Kids Party T-Shirt 4T Light Pink](https://m.media-amazon.com/images/I/41hTSCcPbdL.jpg)**3rd Birthday Baby Shark Shirt - 3 Year Old Outfit for Toddler Boy or Girl - Kids Party T-Shirt 4T Light Pink**Tstars**$17.37**664 rev8mo ago](https://www.amazon.com/dp/B0FXVCQ823)

**~~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 (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★**▲ 900%**](https://www.amazon.com/dp/B0G6FCJ932) [![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★**▲ 880%**](https://www.amazon.com/dp/B0G6F9CC4K) [![XRTBMN Newborn Boy Turtle Romper Short Sleeve Waffle Striped Shark Bodysuit Summer Clothes Infant Baby Sea Animal Outfit (Blue Shark 12-18 Months)](https://m.media-amazon.com/images/I/41uhfJKL+fL.jpg)**XRTBMN Newborn Boy Turtle Romper Short Sleeve Waffle Striped Shark Bodysuit Summer Clothes Infant Baby Sea Animal Outfit (Blue Shark 12-18 Months)**XRTBMN**$13.55**4.7★**▲ 880%**](https://www.amazon.com/dp/B0GGGVW73T) [![Official Baby Shark 2nd Birthday Shirt - Toddler Boy or Girl Birthday Outfit Age 2 - Soft 100% Cotton Premium Party Tee - Pinkfong 4T Pink](https://m.media-amazon.com/images/I/418twVkE4jL.jpg)**Official Baby Shark 2nd Birthday Shirt - Toddler Boy or Girl Birthday Outfit Age 2 - Soft 100% Cotton Premium Party Tee - Pinkfong 4T Pink**Tstars**$19.41**4.8★**▲ 875%**](https://www.amazon.com/dp/B0936BYNW6) [![Nickelodeon Baby Shark Girls T-Shirts and Legging Pants Set for Infant and Toddlers](https://m.media-amazon.com/images/I/41bstK0t-iL.jpg)**Nickelodeon Baby Shark Girls T-Shirts and Legging Pants Set for Infant and Toddlers**Nickelodeon**$24.61**4.6★**▲ 867%**](https://www.amazon.com/dp/B08KR9TGR9)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — -0.2% search growth over the last 90 days.

60K40KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay

Peak months: Sep, Oct · busiest ÷ quietest = 67.3×

## **Reviews**

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

### **What buyers love **

**Fun/Entertainment Experience**22%

*“Great fun”*

**Size-Overall**18%

*“Fit well”*

**Quality-Overall**13%

*“Great quality costume”*

**Comfort-Overall**6%

*“comfortable”*

**Durability**5%

*“dont break either”*

**Value For Money**3%

*“Great costume at a fantastic price”*

**Warmth**3%

*“warm amd thick baby love it”*

**Soft Feel**3%

*“The material is flexible. not stiff or scratchy.”*

**Thickness**3%

*“The shark is a patch that is nice and thick, and securely adhered”*

**Advertised Vs Actual Product**3%

*“Exactly as described”*

### **What buyers complain about **

**Size-Overall**31%

*“It was small”*

**Gap/Hole**11%

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

**Durability**9%

*“Falling apart”*

**Strap/String Quality**6%

*“the leg straps on the inside broke”*

**Quality-Overall**5%

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

**Warmth**4%

*“Heads up, it gets very hot”*

**Thickness**3%

*“Its thin and cheap”*

**Zipper Quality**3%

*“Zipper broke on the first wash”*

**Smell**3%

*“All it did was make the entire load of laundry stink”*

**Hard Feel**3%

*“A bit hard”*

### **Top return reasons **

**Size-Overall**53%

**Length**15%

**Gap/Hole**5%

**Stitch/Finish/Polish**3%

**Advertised Vs Actual Product**3%

**Material Quality**3%

**Arm Fit**2%

**Sleeve Fit**2%

**Value For Money**2%

**Quality-Overall**1%