---
title: "Saiki K Cosplay — $35K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/saiki-k-cosplay"
last_updated: "2026-08-10T11:06:19.164Z"
locale: en
meta:
description: "Niche score 44/100 · $35K/yr market · 134K searches/yr · $26.71 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 44/100 · $35K/yr market · 134K searches/yr · $26.71 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Saiki K Cosplay — $35K/yr Amazon US Niche (2026) - Flapen"
---
# **saiki k cosplay**
**Skip it**
A small market ($35K/yr) — this niche doesn't clear our bar today.
Market size 9Growth 58Conversion 12Competition 36Returns 18Price range 82Avg price 95Brand share 46Review moat 46Quality gap 97
**Quality gap**
**Incredible****3.8★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Incredible****$26.71**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$9.29–$45.77**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Good****+33.3%**
90-day search growth — must beat 0% to launch
**Brand share**
**Okay****78%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Okay****1,868.94**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Okay****64%**
top-5 click share — leaders hold, buyers still browse
**Returns**
**Bad****6.9%**
return rate — above 5% kills the launch gate
**Conversion**
**Bad****1.0%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$35K**
$35K/yr · 134K searches
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** Quality Gap**](https://flapen.com/research/niches?market=us&signal=quality_gap "Avg rating < 4.0") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United States niche tracking, saiki k cosplay is a $35K/yr Amazon United States market (134K searches/yr). The top 5 brands hold 78% of demand. Verdict: Skip it — 44/100.
Data updated Jul 10, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **saiki k cosplay market data**
- **Units sold / yr**
- **1K–1K**
- avg 0–100/product
- **Revenue / yr**
- **$27K–$33K**
- units × avg price
- **Conversion rate**
- **1.0%**
- **Avg BSR**
- **#1,788**
- **Page quality**
- **0%**
- **Prime**
- **88%**
- **Sponsored**
- **53%**
- **Out of stock**
- **10.0%**
- **Avg brand age**
- **40 months**
- **Avg seller age**
- **203 days**
## **Competition & brand share**
The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**11 **▼falling
**Sellers**
**13**
**Top-5 brand share**
**78%**
Top 20: 100%
**Top-5 click share**
**64%**
Top 20: 100%
**Open market**
**16%**
- IMDAET37% - FORTMAC11% - Okazaki10% - RAINDEWLL10% - VNYIGDJS9% - Half and Half6% - Open — no brand owns it (5 brands, 16%)
## **Demand**
Weekly Amazon search volume, last 36 weeks — +33.3% search growth over the last 90 days.
8K6KSpike '26Nov '25Dec '25Jan '26Mar '26Apr '26May '26
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/saiki-k-cosplay/trend)
## **Top saiki k cosplay search terms**
- **saiki k cosplay**101K/yr+35.9%1.1% conv. - **saiki cosplay**9K/yr+20.6%0.3% conv. - **saki k cosplay**7K/yr+32.9%0.6% conv. - **saiki k costume**17K/yr+14.8%0.7% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/saiki-k-cosplay/search-terms)
## **Top saiki k cosplay 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.
0%10%$4K20%$7K30%$11K40%$14K1101001K10K100K 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 17 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Anime Cosplay Costume for Saiki K Cosplay Costume Full SetMen Anime Uniform Halloween Outfit (2XL)**IMDAET**$34.22**3.5★21 rev](https://www.amazon.com/dp/B0F2S5QKMK) [2**FORTMAC Saiki K Hair Clips and Glasses Saiki Kusuo Cosplay Anime Accessories Props**FORTMAC**$20.66**4.1★18 rev](https://www.amazon.com/dp/B0FPM57B4S) [3**VNYIGDJS Saiki Kusuo Glasses + Hair Clips Anime The Disastrous Life of Saiki K Cosplay Costume Accessories**VNYIGDJS**$18.70**3.8★121 rev](https://www.amazon.com/dp/B0B7MVVCM3) [4**RAINDEWLL Saiki K Cosplay Hair Clips and Glasses Saiki Kusuo Cosplay Headwear Anime Props**RAINDEWLL**$20.12**3.6★10 rev](https://www.amazon.com/dp/B0FC6LGH63) [5**Okazaki The Saiki K Cosplay Costume School Uniform Suit Halloween Full Set**Okazaki**$35.70**3.8★67 rev](https://www.amazon.com/dp/B09NLYJ6ZK)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Half and Half Saiki K Cosplay Hairpins + Glasses for Women Men Saiki K Anime Costumes Accessories Kit for Halloween Party Daily**Half and Half**$19.63**0 rev1mo ago](https://www.amazon.com/dp/B0H25488YY) [**RAINDEWLL Saiki K Cosplay Glasses with Hair Clips Set Saiki Kusuo Anime Accessories for Costume Perfect for Cosplay Anime Fans**RAINDEWLL**$19.25**2 rev4mo ago](https://www.amazon.com/dp/B0GKNGJ2CZ) [**FORTMAC Saiki K Hair Clips and Glasses Saiki Kusuo Cosplay Anime Accessories Props**FORTMAC**$20.66**18 rev10mo ago](https://www.amazon.com/dp/B0FPM57B4S) [**COLSA Unisex Halloween Men Anime Japanese School Uniform Green Suit Cosplay Costume Jacket Pants Outfits Full Set (Green L)**COLSA**$35.44**25 rev11mo ago](https://www.amazon.com/dp/B0FLV5FB2H) [**RAINDEWLL Saiki K Cosplay Hair Clips and Glasses Saiki Kusuo Cosplay Headwear Anime Props**RAINDEWLL**$20.12**10 rev1y ago](https://www.amazon.com/dp/B0FC6LGH63)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Half and Half Saiki K Cosplay Hairpins + Glasses for Women Men Saiki K Anime Costumes Accessories Kit for Halloween Party Daily**Half and Half**$19.63**0.0★**▲ 305%**](https://www.amazon.com/dp/B0H25488YY) [**RAINDEWLL Saiki K Cosplay Glasses with Hair Clips Set Saiki Kusuo Anime Accessories for Costume Perfect for Cosplay Anime Fans**RAINDEWLL**$19.25**2.9★**▲ 286%**](https://www.amazon.com/dp/B0GKNGJ2CZ) [**IMDAET Anime Cosplay Costume for Saiki K Cosplay Costume Full SetGirls and Women Anime Uniform Halloween Outfit (S)**IMDAET**$31.89**3.5★**▲ 245%**](https://www.amazon.com/dp/B0FBM2YJ1H) [**Moon Wood Women Thigh High Socks Extra Long Cotton Knit Warm Thick Tall Over The Knee Boot Stocking Leg Warmers Daily Cosplay**Moon Wood**$9.29**4.5★**▲ 107%**](https://www.amazon.com/dp/B074TDRF5B) [**Anime Cosplay Costume for Saiki K Cosplay Costume Full SetMen Anime Uniform Halloween Outfit (2XL)**IMDAET**$34.22**3.5★**▲ 67%**](https://www.amazon.com/dp/B0F2S5QKMK)
**~~View all trending →~~**
## **What buyers say about saiki k cosplay**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Warmth**24%
*“Good for cold days relaxing at home”*
**Comfort-Overall**10%
*“Comfortable”*
**Size-Overall**10%
*“Fits well”*
**Quality-Overall**6%
*“I was surprised by the quality of these socks”*
**Material Quality**6%
*“Cozy and good material”*
**Value For Money**6%
*“Good for the price”*
**Shape/Style**4%
*“Its a really pretty pattern”*
**Advertised Vs Actual Product**3%
*“Exactly as pictured”*
**Soft Feel**2%
*“Super soft and cozy i recommend this brand”*
**Thigh Fit**2%
*“Big thigh approved”*
### **What buyers complain about **
**Thigh Fit**20%
*“Tight on the thighs”*
**Size-Overall**14%
*“Does not run true to size”*
**Thickness**5%
*“Thick”*
**Quality-Overall**4%
*“Cheap”*
**Material Quality**3%
*“Worst piece of cloth I even bought”*
**Value For Money**3%
*“Literally waste of my money”*
**Strength**3%
*“the glasses were flimsy”*
**Durability**3%
*“the little balls broke”*
**Product Condition**3%
*“clearly not new”*
**Stretchability/Expandability/Elasticity**3%
*“It doesn't have enough elastic support at the top”*
### **Top return reasons **
**Size-Overall**28%
**Length**23%
**Thigh Fit**12%
**Material Quality**8%
**Advertised Vs Actual Product**5%
**Quality-Overall**3%
**Thin**2%
**Value For Money**2%
**Thickness**2%
**Wig/Artificial Hair Quality**1%
## **Common questions**
- **Is saiki k cosplay profitable to sell on Amazon United States?**
- The niche generates $35K/yr across 17 tracked products. 1 of 5 products launched in the last 360 days are still selling. 90-day search growth is +33.3%. Flapen's verdict: Skip it (44/100).
- **How competitive is the saiki k cosplay niche?**
- 11 brands and 13 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 78% of demand.
- **What do buyers complain about in saiki k cosplay?**
- Top complaints mined from reviews: Thigh Fit, Size-Overall, Thickness. The return rate is 6.9% — above our launch gate.
- **What does it cost to enter the saiki k cosplay niche?**
- Listings span $9.29–$45.77; the average listing price is $26.71 (sweet spot $15–$100). The average incumbent carries 1,869 reviews — the moat a new listing must climb.
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