duo costumes for best friends
Skip itWeak search conversion (0.1%) — this niche doesn't clear our bar today.
Avg price
Incredible$32.06avg listing price — sweet spot $15–$100
Price range
Great$8.76–$96.96cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Great47%top-5 brand share — no brand owns this niche
Review moat
Great419.27avg incumbent reviews — the moat a new listing must climb
Competition
Good41%top-5 click share — leaders hold, buyers still browse
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Growth
Okay+13.2%90-day search growth — must beat 0% to launch
Returns
Bad9.3%return rate — above 6% kills the launch gate
Market size
Bad$12K$12K/yr · 547K searches
Conversion
Bad0.1%search→purchase rate — share of searches ending in a sale
Competition
The top 5 products take 41% of clicks — established leaders, but buyers still shop beyond them.Brands
41 rising
Sellers
55
Top-5 brand share
47%
Open market
49%
- DORISUBE18%
- Lianshp10%
- Tvnxdgl8%
- inkArts5%
- YOKVAN5%
- PIIDUOO4%
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 51 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Lianshp Adult Animal and Sea Creature Onesie Pajamas Halloween Cosplay Costume Blue
Lianshp$26.024.4★204 rev
Women Lola #10 Jersey Space Movie Halloween Costumes Cheerleading Top & Shorts Outfit with 4pcs Accessories Crop Outfit Medium
DORISUBE$24.884.2★146 rev
Tvnxdgl Grady Twins Costume Women Creepy Twin Sisters Dress Halloween Blue Puff Sleeves Cosplay Dress Daisy Hair Clip Set M
Tvnxdgl$28.624.1★16 rev
Women Lola #10 Jersey Space Movie Halloween Costumes Cheerleading Top & Shorts Outfit with 4pcs Accessories Crop Outfit Large
DORISUBE$24.424.2★146 rev
inkArts Shark Blanket Hoodie - Adult Shark Sleeping Bag & Cozy Flannel Hoodie
inkArts$20.134.2★4,873 rev
Newest
by launch date
2Pcs Milk and Cookie Costume Adult Couples Halloween Costumes Food Theme Funny Costumes for Adult Women Men Dress Up Cosplay Parties-Adult One Size
Funnlot$33.5217 rev
ZDT Womens Color Block 80s 90s Outfit 2 Piece Costume Zip Up Windbreaker Track Suits Set PinkWhite L New
ZDT$37.90100 rev
APUDWN 12 PCS Halloween Orange and Blue Costume for Women Adult with Hats Ties Bow Ties Gloves Glasses and Staffs Classic Duo Cosplay Outfit for Party School Events Group or Couple Dress Up
APUDWN$31.934 rev
itswordpiz Couples Halloween Costume for Adult 8PCS Funny Couples Costume Accessories with Seashell Bra Hat Gloves and Belts for Men Women Green
itswordpiz$23.0416 rev
6PCS Men Characters Costumes in Talladega Nights Blue Short Sleeve Shirt with Sunglasses Hat Gloves Props Cosplay Set Car Driver Sports for Halloween Cosplay Party Full Suit Set
WooHand$26.0856 rev
Trending
90-day click momentumZDT Womens Color Block 80s 90s Outfit 2 Piece Costume Zip Up Windbreaker Track Suits Set PinkWhite L New
ZDT$37.904.6★
Fun Costumes Womens Pixar Monsters Inc. Mike Wazowski Costume - Shirt Skirt Headband & Gloves
Fun Costumes$90.525.0★
Women Lola #10 Jersey Space Movie Halloween Costumes Cheerleading Top & Shorts Outfit with 4pcs Accessories Crop Outfit Medium
DORISUBE$24.884.2★
DC Comics Robin Glitter Logo Juniors Costume Cosplay Cape T-Shirt Tee Shirt Batman (Large) Red
Bioworld$25.983.6★
Tvnxdgl Grady Twins Costume Women Creepy Twin Sisters Dress Halloween Blue Puff Sleeves Cosplay Dress Daisy Hair Clip Set M
Tvnxdgl$28.624.1★
Demand & seasonality
Weekly Amazon search volume, last 79 weeks — +13.2% search growth over the last 90 days.Peak months: Sep, Oct, Nov · busiest ÷ quietest = 106.5×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Quality is good. when is a wig ever comfy”
“Fit great”
“Great value”
“Great gift idea”
“Can be enjoyed by two children”
“is very comfortable”
“Very soft”
“As described”
“The material feels nice on the skin, and it is perfect for relaxing, sleeping, or just having fun”
“Nice and sticky”
What buyers complain about
“Too small”
“broke after one try”
“not well made”
“Don't use more than once maybe twice as adhesive is not made for multiple on/off”
“Used, dirty and damaged”
“reading instructions ahead of time”
“Arrived with hole”
“Seams are trash”
“the material is super cheap the buttons had to be sewn on”
“This was nothing like the picture”