plus size sexy costume
Skip itA small market ($2K/yr) — this niche doesn't clear our bar today.
Competition
Great30%top-5 click share — an open shelf
Avg price
Great$18.21avg listing price — sweet spot $15–$100
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Review moat
Good831.09avg incumbent reviews — the moat a new listing must climb
Price range
Good$5.65–$30.21cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Good69%top-5 brand share — brands hold most of the demand
Returns
Okay3.4%return rate — above 5% kills the launch gate
Growth
Bad-2.0%90-day search growth — must beat 0% to launch
Market size
Bad$2K$2K/yr · 299K searches
Conversion
Bad0.0%search→purchase rate — share of searches ending in a sale
According to Flapen's Amazon United States niche tracking, plus size sexy costume is a $2K/yr Amazon United States market (299K searches/yr). The top 5 brands hold 69% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 44/100.
Data updated Jul 21, 2026 · scored weekly · How we score niches
plus size sexy costume market data
- Units sold / yr
- 250–500
- avg 0–100/product
- Revenue / yr
- $5K–$9K
- units × avg price
- Conversion rate
- 0.0%
- Avg BSR
- #17,833
- Page quality
- 0%
- Prime
- 98%
- Sponsored
- 45%
- Out of stock
- 6.1%
- Avg brand age
- 42 months
- Avg seller age
- 183 days
Competition & brand share
Clicks spread well past the top 5 (30% combined) — an open shelf where new products get seen.Brands
23 falling
Sellers
28
Top-5 brand share
69%
Top 20: 98%
Top-5 click share
30%
Top 20: 64%
Open market
26%
- Avidlove24%
- SOLY HUX20%
- Mixxmix10%
- WDIRARA9%
- OYOANGLE6%
- Neohouny6%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -2.0% search growth over the last 90 days.Peak months: Sep, Oct, Nov · busiest ÷ quietest = 14.0×
Top plus size sexy costume search terms
- plus size sexy costume69K/yr
- plus size cosplay lingerie23K/yr
- plus size lingerie costumes22K/yr
- sexy plus size costume37K/yr
- sexy costumes for women plus size32K/yr
- plus size sexy costumes22K/yr
- cosplay lingerie plus size5K/yr
- sexy plus size halloween costumes12K/yr
- plus size lingerie costume6K/yr
- sexy halloween costumes for women plus size3K/yr
Top plus size sexy 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
SOLY HUX Womens Plus Size Cosplay Lingerie Set Nightgown Dress with Thongs Qipao Costume Outfits Black and Red 4X-Large Plus
SOLY HUX$23.204.4★14 rev
Avidlove Womens Maid Costume Outfits Sexy Roleplay Lingerie Sleepwear Dress with Choker White Nurse XXL
Avidlove$18.164.5★446 rev
Mixxmix Plus Size Lingerie for Women Sexy Princess Lingerie Cosplay Costume Outfit with Bra and Panty Blue 2XL
Mixxmix$19.514.3★115 rev
Moon Wood Plus Size Fishnet Stockings with Bows Thigh High Stockings for Women Stay up Lingerie for Cosplay Tight
Moon Wood$9.354.5★428 rev
WDIRARA Womens Plus Size 2 Piece Contrast Lace Cosplay Lingerie Set Maid Costume Set Dress and Belt Black and White 3X-Large Plus
WDIRARA$24.874.6★51 rev
Newest
by launch dateSOLY HUX Womens Plus Size Cosplay Lingerie Set Nightgown Dress with Thongs Qipao Costume Outfits Black and Red 4X-Large Plus
SOLY HUX$23.2014 rev
SOLY HUX Womens Plus Size Cosplay Lingerie Set Nightgown Dress with Thongs Qipao Costume Outfits Black and Red XX-Large Plus
SOLY HUX$23.3214 rev
Neohouny Plus Size Sexy Costume for Women Exotic Lingerie Sets with Skirt XL
Neohouny$19.9935 rev
Mixxmix Plus Size Lingerie for Curvy Women Halloween Costume Underwire Outfit Garter Lingerie with Thong Set 4 Piece 3XL Purple
Mixxmix$18.78510 rev
SOLY HUX Womens Plus Size Fishnet Lingerie Sexy Mesh Badydoll Hollow Out Halter Bra and Thong Panty Sets with Skirts Plain Black XX-Large Plus
SOLY HUX$14.7036 rev
Trending
90-day click momentum
Avidlove Sexy Lingerie for Women Plus Size School Girl Role Playing Outfit with Tie Top and Mini Pleated Skirt
Avidlove$19.434.4★
Avidlove Womens Maid Costume Outfits Sexy Roleplay Lingerie Sleepwear Dress with Choker White Nurse XXL
Avidlove$18.164.5★
Mixxmix Plus Size Lingerie for Curvy Women Halloween Costume Underwire Outfit Garter Lingerie with Thong Set 4 Piece 3XL Purple
Mixxmix$18.784.2★
Avidlove Plus Size Schoolgirl Lingerie for Women Sexy Lingerie Roleplaying Outfit with Tie Top and Mini Skirt (Greenplus size 20 Plus)
Avidlove$17.544.4★
OYOANGLE Womens Plus Size 3 Pieces Lingerie Set Floral Embroidery Underwire Bra and Panty Babydoll Teddy Boudoir Outfit
OYOANGLE$25.534.0★
What buyers say about plus size sexy costume
What buyers praise and complain about, mined from review topics.What buyers love
“Fit great”
“Super comfortable”
“Good quality”
“Super sexy dress”
“Super soft, and fits true to size”
“Exactly as pictured”
“Durable”
“has a good stretch”
“Fabric feels comfy too”
“Decent price”
What buyers complain about
“Too big”
“These are extremely cheaply made”
“Poor strap placement”
“Does not fit like in picture”
“Only buy if breast are bigger than a C. Not for small chested people”
“I ended up causing a whole to rip”
“I expected it to be cheap”
“Too tight on the thighs”
“fabric is very stretchy”
“The materials are very cheap for the amount of the product”
Top return reasons
Common questions
- Is plus size sexy costume profitable to sell on Amazon United States?
- The niche generates $2K/yr across 58 tracked products. 2 of 16 products launched in the last 360 days are still selling. 90-day search growth is -2.0%. Flapen's verdict: Skip it (44/100).
- How competitive is the plus size sexy costume niche?
- 23 brands and 28 sellers compete. The top 5 products take 30% of clicks and top 5 brands hold 69% of demand.
- What do buyers complain about in plus size sexy costume?
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Strap/String Quality. The return rate is 3.4%.
- When does demand for plus size sexy costume peak?
- Demand peaks in Sep–Oct–Nov; the busiest month runs 14.0× the quietest.
- What does it cost to enter the plus size sexy costume niche?
- Listings span $5.65–$30.21; the average listing price is $18.21 (sweet spot $15–$100). The average incumbent carries 831 reviews — the moat a new listing must climb.