---
title: "Plus Size Birthday Dress — $11K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/plus-size-birthday-dress"
last_updated: "2026-08-11T20:30:39.021Z"
locale: en
meta:
description: "Niche score 47/100 · $11K/yr market · 824K searches/yr · $33.62 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 47/100 · $11K/yr market · 824K searches/yr · $33.62 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Plus Size Birthday Dress — $11K/yr Amazon US Niche (2026) - Flapen"
---
# **plus size birthday dress**
**Skip it**
High returns (15.8%) — this niche doesn't clear our bar today.
Market size 3Growth 18Conversion 1Competition 97Returns 0Price range 85Avg price 95Brand share 85Review moat 66Quality gap 85
**Competition**
**Incredible****12%**
top-5 click share — an open shelf
**Avg price**
**Incredible****$33.62**
avg listing price — sweet spot $15–$100
**Brand share**
**Great****50%**
top-5 brand share — no brand owns this niche
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Price range**
**Great****$9.51–$54.53**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****876.52**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-14.3%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$11K**
$11K/yr · 824K searches
**Conversion**
**Bad****0.0%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Bad****15.8%**
return rate — above 5% kills the launch gate
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United States niche tracking, plus size birthday dress is a $11K/yr Amazon United States market (824K searches/yr). The top 5 brands hold 50% of demand. Demand peaks in Sep–Oct. Verdict: Skip it — 47/100.
Data updated Jul 13, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **plus size birthday dress market data**
- **Units sold / yr**
- **1K–1K**
- avg 0–100/product
- **Revenue / yr**
- **$34K–$42K**
- units × avg price
- **Conversion rate**
- **0.0%**
- **Avg BSR**
- **#2,899**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **92%**
- **Out of stock**
- **3.8%**
- **Avg brand age**
- **34 months**
- **Avg seller age**
- **180 days**
## **Competition & brand share**
Clicks spread well past the top 5 (12% combined) — an open shelf where new products get seen.
**Brands**
**65 **▼falling
**Sellers**
**73**
**Top-5 brand share**
**50%**
Top 20: 83%
**Top-5 click share**
**12%**
Top 20: 32%
**Open market**
**46%**
- Floerns19% - BEAUDRM12% - SOLY HUX7% - GORGLITTER7% - ENOPINK5% - FANCMISTERY4%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -14.3% search growth over the last 90 days.
20K15KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Sep, Oct · busiest ÷ quietest = 1.8×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/plus-size-birthday-dress/trend)
## **Top plus size birthday dress search terms**
- **plus size birthday dress**131K/yr-4.1%0.0% conv. - **plus size birthday outfit**121K/yr-25.4%0.1% conv. - **birthday dress plus size**80K/yr-13.6%0.0% conv. - **plus size going out dresses**56K/yr+6.1%0.1% conv. - **birthday outfits for women plus size**82K/yr-34.7%0.0% conv. - **club dress plus size**49K/yr+29.0%0.2% conv. - **sexy black dress plus size**60K/yr-15.9%0.1% conv. - **plus size club dresses**37K/yr-2.4%0.1% conv. - **bodycon dress plus size**28K/yr-16.7%0.1% conv. - **plus size sexy black dress**30K/yr-24.9%0.1% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/plus-size-birthday-dress/search-terms)
## **Top plus size birthday dress 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%1%$1112%$2223%$3324%$4431101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**ENOPINK Birthday Sequined Dresses for Women - Fashion Sequins Short Sleeve Loose Tunic Blouses Mini Dresses Black XX-Large**ENOPINK**$35.96**4.0★1,020 rev](https://www.amazon.com/dp/B0C27RBSTG) [2**FANCMISTERY Womens Plus Size Sexy Lingerie Dress Sleeveless Bodycon Stretch Elegant Coreset for Club Midi Dresses (US Alpha X-Large Plus Regular Black)**FANCMISTERY**$22.23**4.0★551 rev](https://www.amazon.com/dp/B0CN8PKY8Z) [3**BEAUDRM Womens Plus Size Floral Sheer Mesh Mini Dress Long Bell Sleeve Wedding Guest Dresses Going Out Dresses Black 3X-Large Plus**BEAUDRM**$35.15**3.8★11 rev](https://www.amazon.com/dp/B0FMDY5X5B) [4**GORGLITTER Womens Plus Size Lace Dress Fall Casual Wrap Ruched Long Sleeve Bodycon Cocktail Birthday Party Mini Dress Black 3X-Large Plus**GORGLITTER**$41.68**3.6★20 rev](https://www.amazon.com/dp/B0FZHNBDZF) [5**Ekaliy Womens Plus Size Casual Tunic Tops Blouses Mesh See Through Shirts Dresses with Belt Club Party Outfit XXL Black**Ekaliy**$36.20**4.2★3,982 rev](https://www.amazon.com/dp/B09XB2PK9Q)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**GORGLITTER Womens Plus Size Lace Dress Fall Casual Wrap Ruched Long Sleeve Bodycon Cocktail Birthday Party Mini Dress Black 3X-Large Plus**GORGLITTER**$41.68**20 rev7mo ago](https://www.amazon.com/dp/B0FZHNBDZF) [**OYOANGLE Womens Plus Size 3D Body Heat Map Print Sexy Concert Outfit Y2K Short Sleeve Bodycon Dress Black 3X-Large Plus**OYOANGLE**$23.67**20 rev9mo ago](https://www.amazon.com/dp/B0FPXK9BX2) [**BEAUDRM Womens Plus Size Vintage Floral Mesh Mini Dress Ruffle V Neck Bell Long Sleeve Going Out Dresses Black XX-Large Plus**BEAUDRM**$40.26**40 rev10mo ago](https://www.amazon.com/dp/B0FPCT4TL3) [**BEAUDRM Womens Plus Size Vintage Floral Mesh Mini Dress Ruffle V Neck Bell Long Sleeve Going Out Dresses Black 3X-Large Plus**BEAUDRM**$40.74**40 rev10mo ago](https://www.amazon.com/dp/B0FPCSD4HQ) [**Floerns Womens Plus Size Off The Shoulder Mini Dress Mesh Long Sleeve Bodycon Dresses Black XX-Large Plus**Floerns**$28.07**12 rev10mo ago](https://www.amazon.com/dp/B0FPCSLD31)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**BEAUDRM Womens Plus Size Vintage Floral Mesh Mini Dress Ruffle V Neck Bell Long Sleeve Going Out Dresses Black 3X-Large Plus**BEAUDRM**$40.74**4.3★**▲ 46%**](https://www.amazon.com/dp/B0FPCSD4HQ) [**GORGLITTER Womens Plus Size Dress Sexy Club Birthday Cheetah Leopard Cocktail Asymmetrical Mini Dress Going Out Outfits Brown XX-Large Plus**GORGLITTER**$39.20**4.2★**▲ 43%**](https://www.amazon.com/dp/B0FGJL5GT1) [**Floerns Womens Plus Size Going Out Halter Dress Deep V Cowl Neck Date Night Bodycon Mini Dresses Black 3X-Large Plus**Floerns**$32.66**4.0★**▲ 41%**](https://www.amazon.com/dp/B0FBRM23HT) [**OYOANGLE Womens Plus Size 3D Body Heat Map Print Sexy Concert Outfit Y2K Short Sleeve Bodycon Dress Black 3X-Large Plus**OYOANGLE**$23.67**4.7★**▲ 41%**](https://www.amazon.com/dp/B0FPXK9BX2) [**FeelinGirl Tummy Control Shapewear Faja Colombianas Zipper Crotch Body Shaper Plus Size Postpartum Fajas with Butt Lift Black X-Large**FeelinGirl**$41.20**4.1★**▲ 40%**](https://www.amazon.com/dp/B0FJFLFHKF)
**~~View all trending →~~**
## **What buyers say about plus size birthday dress**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**30%
*“it fit just as expected”*
**Comfort-Overall**13%
*“Very comfortable to wear”*
**Shape/Style**10%
*“Looks very flattering”*
**Stretchability/Expandability/Elasticity**5%
*“Great stretchy material”*
**Quality-Overall**5%
*“Good quality”*
**Color**5%
*“Beautiful colors”*
**Material Quality**4%
*“The material is very soft”*
**Advertised Vs Actual Product**3%
*“As described”*
**Value For Money**2%
*“Worth it”*
**Soft Feel**2%
*“Soft and beautiful”*
### **What buyers complain about **
**Size-Overall**32%
*“Awkward fit”*
**Material Quality**7%
*“I did not like the material”*
**Quality-Overall**5%
*“Cheaply made”*
**Advertised Vs Actual Product**3%
*“Do not look like the picture”*
**Shape/Style**3%
*“Overall I dont like this shaper”*
**Strap/String Quality**3%
*“No straps”*
**Thickness**2%
*“it is a bit thin”*
**Stretchability/Expandability/Elasticity**2%
*“Very stretchy”*
**Comfort-Overall**2%
*“break out of your comfort zone”*
**Thigh Fit**2%
*“the thigh area is too loose”*
### **Top return reasons **
**Size-Overall**45%
**Length**9%
**Waist Fit**7%
**Chest Fit**7%
**Material Quality**6%
**Hip Fit**4%
**Advertised Vs Actual Product**4%
**Shoulder Fit**3%
**Shape/Style**3%
**Thin**2%
## **Common questions**
- **Is plus size birthday dress profitable to sell on Amazon United States?**
- The niche generates $11K/yr across 204 tracked products. 3 of 69 products launched in the last 360 days are still selling. 90-day search growth is -14.3%. Flapen's verdict: Skip it (47/100).
- **How competitive is the plus size birthday dress niche?**
- 65 brands and 73 sellers compete. The top 5 products take 12% of clicks and top 5 brands hold 50% of demand.
- **What do buyers complain about in plus size birthday dress?**
- Top complaints mined from reviews: Size-Overall, Material Quality, Quality-Overall. The return rate is 15.8% — above our launch gate.
- **When does demand for plus size birthday dress peak?**
- Demand peaks in Sep–Oct; the busiest month runs 1.8× the quietest.
- **What does it cost to enter the plus size birthday dress niche?**
- Listings span $9.51–$54.53; the average listing price is $33.62 (sweet spot $15–$100). The average incumbent carries 877 reviews — the moat a new listing must climb.
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