Underdog Glasses
FailShoppers spend an estimated $54K a year here, so Underdog Glasses is a Fail.
- Flapen Score
- 47 / 100Top 41% of 16,930 Clothing, Shoes & Jewelry niches · +2 vs the category median of 4547
- Market size
- $54K/yr96K searches / yr
- 90-day growth
- +35.9%search demand this quarter
- Competition
- 57%top-5 click share · 7 brands · 9 sellers
Flapen Score
Underdog Glasses against its category
The dotted line is the Clothing, Shoes & Jewelry average. Past it, Underdog Glasses is stronger. Inside it, weaker.
Market
The Underdog Glasses market on Amazon at a glance
Shoppers on Amazon United States searched for Underdog Glasses 96K times last year and spent an estimated $54K. The top 5 brands take 94% of clicks. Flapen scores it 47 out of 100, a Fail.
01 · Demand
An estimated 1.8% of those searches ended in a purchase.
Shoppers searched for this 96K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 1.8% of those searches ended in a purchase. Searches in the last 90 days moved +35.9% against the 90 days before. Searches, conversion and average price together put the market at an estimated $54K a year.
- Searches, last 12 months
- 96K
- Growth, 90 days vs prior 90
- +35.9%
- Conversion, latest week
- 1.8%
- Market size, estimated
- $54Ka year
- Top search term
- underdog glasses50K searches a year
02 · Price
A sale here is worth $30.32.
Listings sell for $30.32 on average, from $12.93 to $69.76. Amazon reports units sold in ranges. This niche sold 2K to 3K a year. The average listing sells 0 to 100 of them. At $30.32 that is $0 to $3K a year per listing.
- Average price
- $30.32inside the $15 to $100 sweet spot
- Price range
- $12.93–$69.76
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 2K–3K
- Units per listing a year
- 0–100
- Revenue per listing a year
- $0–$3K
- Returns
- 4.4%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads.
100% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 2.9% of listings are out of stock. The average listing ranks #710 within Sunglasses & Eyewear Accessories. It carries 714 reviews at 4.01 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 100%
- Prime listings
- 100%
- Out of stock, average day
- 2.9%
- Average rank
- #710in Sunglasses & Eyewear Accessories
- Average rating
- 4.01 starsAmazon United States average 4.42 stars
- Average reviews
- 714per listing
- Listings tracked
- 19
04 · Newcomers
3 of last year's 8 launches cleared the first-year sales bar.
8 products launched here in the last 12 months. 3 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 48 months on average, so the names here are settling in.
- Launched, last 12 months
- 8
- Successful launches
- 3Amazon's first-year sales bar
- Average brand age
- 48 months
Products
Top Underdog Glasses products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 12, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
FEISEDY Polarized Clip On Sunglasses Clip Cap Sports Sunglass UV400 Protection for Mens Womens Fishing Cycling Hiking B0356
- Price
- $22.13
- Rating
- 4.5/5
- Reviews
- 42
- Age
- 8mo ago

DEECOZY Outdoor Polarized Sunglasses Clip Cap Sports Sunglasses UV400 Sunglasses for Mens Womens Fishing Cycling Hiking
- Price
- $14.81
- Rating
- 3.9/5
- Reviews
- 121
- Age
- 2y ago

DEECOZY Outdoor Polarized Clip-On Sunglasses Flip Cover UV400 Protection Sunglasses for Adults Green
- Price
- $13.63
- Rating
- 3.9/5
- Reviews
- 121
- Age
- 2y ago

FEISEDY Polarized Clip On Sunglasses Clip Cap Sports Sunglasses UV400 Sunglasses for Mens Womens Fishing Cycling Hiking B0356
- Price
- $25.38
- Rating
- 4.5/5
- Reviews
- 42
- Age
- 3mo ago

POCONT Clip Cap Sports Sunglasses Polarized Clip on Sunglasses Outdoor Polarized Clip Cap Glasses for Golf Cycling Fishing for Men Women (Green)
- Price
- $15.71
- Rating
- 3.5/5
- Reviews
- 140
- Age
- 2y ago
Trending
estimated 90-day click momentum
UNDERDOG Rudy Polarized Hat Clip-On Sunglasses Cap Clip Lens Square Frame HD Clarity All-Day Fit Glare-Reducing Shades for Fishing Boating Driving Golf and Outdoor Use Black Cherry
- Price
- $69.76
- Rating
- 4.5/5
- Reviews
- 13
- Age
- 4mo ago

UNDERDOG Oliver Non-Polarized Hat Clip Sunglasses Lens Square-Curved Shield Screen-Ready Clarity for Displays Cap-Brim Clip UV400 Polycarbonate RX-Compatible Wraparound Fit Rose Gold
- Price
- $68.55
- Rating
- 4.1/5
- Reviews
- 33
- Age
- 4mo ago

UNDERDOG Oliver Non-Polarized Hat Clip Sunglasses Lens Square-Curved Shield Screen-Ready Clarity for Displays Cap-Brim Clip UV400 Polycarbonate RX-Compatible Wraparound Fit Black Cherry
- Price
- $68.87
- Rating
- 4.1/5
- Reviews
- 33
- Age
- 4mo ago

UNDERDOG Rocky Hat Clip-On Sunglasses Polarized Shield Lens Shades for Cap Brim UV400 Lens Lightweight Glare Reduction for Golfing Running Hiking and Outdoors Slim Fit Green
- Price
- $69.59
- Rating
- 4.1/5
- Reviews
- 36
- Age
- 4mo ago

FEISEDY Polarized Clip On Sunglasses Clip Cap Sports Sunglasses UV400 Sunglasses for Mens Womens Fishing Cycling Hiking B0356
- Price
- $25.38
- Rating
- 4.5/5
- Reviews
- 42
- Age
- 3mo ago
Newest
by launch date
FEISEDY Polarized Clip On Sunglasses Clip Cap Sports Sunglasses UV400 Sunglasses for Mens Womens Fishing Cycling Hiking B0356
- Price
- $25.38
- Rating
- 4.5/5
- Reviews
- 42
- Age
- 3mo ago

UNDERDOG Oliver Non-Polarized Hat Clip Sunglasses Lens Square-Curved Shield Screen-Ready Clarity for Displays Cap-Brim Clip UV400 Polycarbonate RX-Compatible Wraparound Fit Rose Gold
- Price
- $68.55
- Rating
- 4.1/5
- Reviews
- 33
- Age
- 4mo ago

UNDERDOG Oliver Non-Polarized Hat Clip Sunglasses Lens Square-Curved Shield Screen-Ready Clarity for Displays Cap-Brim Clip UV400 Polycarbonate RX-Compatible Wraparound Fit Black Cherry
- Price
- $68.87
- Rating
- 4.1/5
- Reviews
- 33
- Age
- 4mo ago

UNDERDOG Rudy Polarized Hat Clip-On Sunglasses Cap Clip Lens Square Frame HD Clarity All-Day Fit Glare-Reducing Shades for Fishing Boating Driving Golf and Outdoor Use Black Cherry
- Price
- $69.76
- Rating
- 4.5/5
- Reviews
- 13
- Age
- 4mo ago

UNDERDOG Rocky Hat Clip-On Sunglasses Polarized Shield Lens Shades for Cap Brim UV400 Lens Lightweight Glare Reduction for Golfing Running Hiking and Outdoors Slim Fit Green
- Price
- $69.59
- Rating
- 4.1/5
- Reviews
- 36
- Age
- 4mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 57% of clicks. Leaders hold, but buyers still shop past them.
Brands
7 falling
Sellers
9
Est. top-5 brand share
94%
Top 20: 100%
Est. top-5 click share
57%
Top 20: 100%
Open market
2%
- DEECOZY37%
- FEISEDY33%
- UNDERDOG11%
- POCONT8%
- MEETSUN4%
- KIDENEI4%
- Open — no brand owns it (1 brand, 2%)
Demand
Underdog Glasses search demand
Weekly searches over the year. Pick a range.
Search terms
Top Underdog Glasses search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- underdog glasses50K/yr
- underdog sunglasses clip to hat12K/yr
- clip on hat sunglasses6K/yr
- underdog sunglasses15K/yr
- hat sunglasses5K/yr
- clip to cap sunglasses4K/yr
- underdog glasses for men4K/yr
Reviews and returns
What reviews say buyers love and hate about Underdog Glasses
We read the reviews and the return reasons for every product selling here.
“A tad too big”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
20 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Underdog Glasses questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









