dinosaur costume
Worth a lookShows a sweet-spot price point ($29.87 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Avg price
Incredible$29.87avg listing price — sweet spot $15–$100
Brand share
Great42%top-5 brand share — no brand owns this niche
Market size
Great$1.5M$1.5M/yr · 3.7M searches
Competition
Great29%top-5 click share — an open shelf
Price range
Great$9.92–$49.43cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Good+53.0%90-day search growth — must beat 0% to launch
Review moat
Good1,491.69avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Conversion
Bad1.4%search→purchase rate — share of searches ending in a sale
Returns
Bad9.1%return rate — above 6% kills the launch gate
According to Flapen's Amazon United States niche tracking, dinosaur costume is a $1.5M/yr Amazon United States market (3.7M searches/yr). The top 5 brands hold 42% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Worth a look — 64/100.
Data updated Jul 10, 2026 · scored weekly · How we score niches
Market data
- Units sold / yr
- 60K–80K
- avg 500–750/product
- Revenue / yr
- $1.8M–$2.4M
- units × avg price
- Launch success
- 52%
- 12 of 23 new (360d)
- Conversion rate
- 1.4%
- Avg BSR
- #3,240
- Page quality
- 0%
- Prime
- 95%
- Sponsored
- 89%
- Out of stock
- 11.5%
- Avg brand age
- 37 months
- Avg seller age
- 161 days
Competition
Clicks spread well past the top 5 (29% combined) — an open shelf where new products get seen.Brands
45 rising
Sellers
81
Top-5 brand share
42%
Top 20: 79%
Top-5 click share
29%
Top 20: 58%
Open market
54%
- Generic14%
- One Casa10%
- miwhse9%
- TO.BE.NO.1 Towards The First6%
- JUOLOET5%
- JASHKE4%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +53.0% search growth over the last 90 days.Peak months: Sep, Oct, Nov · busiest ÷ quietest = 26.2×
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 74 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
miwhse Halloween Inflatable Dinosaur Costume Adult Fancy Dinosaur Suit Blow up Trex Costume Full Body Dino Costume For Halloween Cosplay Party(brown)
miwhse$32.464.6★895 rev

Dinosaur Costume-3D Skeleton Design Realistic Halloween Dinosaur Skeleton Costume Themed Skull Cosplay Props (Childrens)
Generic$31.654.8★218 rev

TO.BE.NO.1 Towards The First inflatable dinosaur costume adult T-Rex Dinosaur Costume Adults Funny Cosplay Halloween (Brown Dinosaur)
TO.BE.NO.1 Towards The First$36.144.5★907 rev

Dinosaur Skeleton Costume 3D Spinosaurus Skull Mask & Plush Spine for Halloween Cosplay & Dress-Up Play (29.5in)
Generic$27.484.5★163 rev

One Casa Halloween Inflatable Dinosaur Costume Adult Blow Up T Rex Suit Men Women (72INCH With Hat)
One Casa$42.484.6★1,151 rev
Newest
by launch date
Anytin Dinosaur Skeleton Costume for Kids 31 in 3D Spinosaurus Plush Dino Outfit with Skull Headpiece & Spine Soft Wearable Halloween Dress Up Gray
Anytin$34.155 rev

NatureHaven 3D Silly Wearable Dinosaur Skeleton Costume Realistic Spinosaurus Skull Headpiece with Plush Spine for Halloween Cosplay Dress-Up Party and Photos (Kids)
NatureHaven$19.324 rev

MENGKAO Inflatable Dinosaur Costume Adult Blow up T-Rex Costume Full Body Dino Halloween Costumes for Men Women(Blown)
MENGKAO$32.63141 rev

Wmbzxh 31.5in Dinosaur Skeleton Plush Costume Soft 3D Spinosaurus Skull Headpiece with Spine Back Piece Outfit for Kids Dino Snug Cosplay & Dress-Up Play for Halloween My Cozy Dino (Gray)
Wmbzxh$33.5119 rev

Silike Dinosaur Skeleton Costume Cozy 3D Dinosaur Skeleton Costume Set Realistic Spinosaurus Outfit(Grey 31 Inches)
Silike$20.2012 rev
Trending
90-day click momentum
QNRMS Inflatable Dinosaur Costume Adult Trex Costume Adult Blow up T-Rex Costume Halloween Costumes (Green)
QNRMS$30.904.6★

NatureHaven 3D Silly Wearable Dinosaur Skeleton Costume Realistic Spinosaurus Skull Headpiece with Plush Spine for Halloween Cosplay Dress-Up Party and Photos (Kids)
NatureHaven$19.324.2★

Adult Onesie Halloween Green Dinosaur Costume Unisex Cosplay Pajamas
OLAOLA$26.514.4★

JUOLOET Unisex Adult Onesie Pajamas Dinosaur Animal One Piece Snug Fit Halloween Costume Sleepwear HomewearPurple Dinosaur XX-Large
JUOLOET$26.414.4★

One Casa Halloween Inflatable Dinosaur Costume Kids Blow Up T Rex Suit Boys Girls (2-3YRS No Hat)
One Casa$34.404.5★
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Sizing is fairly accurate to the listed range”
“Cute and great quality”
“So much fun”
“The material is soft”
“Great Value”
“Very durable”
“Very happy with his gift”
“Easy to use”
“They are very comfy”
“The material is comfortable”
What buyers complain about
“Bad quality”
“It is big”
“wont last”
“came used”
“Poor quality on stitching”
“It is a little hard to get on at first”
“Wasn't even able to finish his trick or treating because of it deflating”
“A little pricey”
“the material is hard to fix”
“Its thin so be careful”
Top return reasons
Common questions
- Is dinosaur costume profitable to sell on Amazon United States?
- The niche generates $1.5M/yr across 74 tracked products. 12 of 23 products launched in the last 360 days are still selling. 90-day search growth is +53.0%. Flapen's verdict: Worth a look (64/100).
- How competitive is the dinosaur costume niche?
- 45 brands and 81 sellers compete. The top 5 products take 29% of clicks and top 5 brands hold 42% of demand.
- What do buyers complain about in dinosaur costume?
- Top complaints mined from reviews: Quality-Overall, Size-Overall, Durability. The return rate is 9.1% — above our launch gate.
- When does demand for dinosaur costume peak?
- Demand peaks in Sep–Oct–Nov; the busiest month runs 26.2× the quietest.
- What does it cost to enter the dinosaur costume niche?
- Listings span $9.92–$49.43; the average listing price is $29.87 (sweet spot $15–$100). The average incumbent carries 1,492 reviews — the moat a new listing must climb.
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