collar extenders for mens shirts
Worth a lookShows searches that convert (13.9% search→purchase), but a concentrated shelf (top 5 take 75% of clicks) keeps it on the watch list.
Conversion
Incredible13.9%search→purchase rate — share of searches ending in a sale
Returns
Great1.3%return rate — above 5% kills the launch gate
Review moat
Good852.4avg incumbent reviews — the moat a new listing must climb
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Market size
Good$468K$468K/yr · 321K searches
Price range
Okay$5.63–$21.92cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Okay$10.48avg listing price — sweet spot $15–$100
Growth
Okay+7.0%90-day search growth — must beat 0% to launch
Brand share
Bad91%top-5 brand share — brand-locked demand
Competition
Bad75%top-5 click share — a locked-up shelf
According to Flapen's Amazon United States niche tracking, collar extenders for mens shirts is a $468K/yr Amazon United States market (321K searches/yr). The top 5 brands hold 91% of demand. Verdict: Worth a look — 51/100.
Data updated Jul 18, 2026 · scored weekly · How we score niches
collar extenders for mens shirts market data
- Units sold / yr
- 40K–50K
- avg 2,000–2,500/product
- Revenue / yr
- $419K–$524K
- units × avg price
- Conversion rate
- 13.9%
- Avg BSR
- #1,830
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 93%
- Out of stock
- 11.2%
- Avg brand age
- 44 months
- Avg seller age
- 178 days
Competition & brand share
The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.Brands
10 falling
Sellers
12
Top-5 brand share
91%
Top 20: 100%
Top-5 click share
75%
Top 20: 100%
Open market
7%
- Wardrobe Hackers50%
- PEASUG19%
- Johnson & Smith13%
- KUNTAERY6%
- Okxiri4%
- Canlierr2%
- Open — no brand owns it (4 brands, 7%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +7.0% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.7×
Top collar extenders for mens shirts search terms
- collar extenders for mens shirts91K/yr
- collar extender37K/yr
- button extender for dress shirts30K/yr
- neck extender for dress shirt16K/yr
- collar extenders for mens dress shirts15K/yr
- shirt collar extenders for men13K/yr
- dress shirt collar extender13K/yr
- button extenders for shirts13K/yr
- dress shirt neck extender14K/yr
- dress shirt neck extender for men8K/yr
Top collar extenders for mens shirts 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 15 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Wardrobe Hackers Collar Extenders for Mens Shirts (Black 3-Pack with Elastic Loops) Neck Relief for Tight Collars for Dress Shirts - Black Button Expanders
Wardrobe Hackers$15.404.5★611 rev
PEASUG 16 Pcs Collar Extenders for Mens Shirts Elastic Button Extender for Dress Shirts Tie Neck Extenders for 1/2 Size Expansion of Men Dress Shirts Suit
PEASUG$6.664.4★352 rev
Wardrobe Hackers Collar Extenders for Mens Shirts (Soft Elastic Design) Tight Neck Collar Relief Collar Expander Buttons for Dress Shirts Cuff Extensions (2-Pack White) Standard
Wardrobe Hackers$12.594.5★846 rev
Johnson & Smith White Metal Collar Extenders Stretch Neck Extender for 1/2 Size Expansion of Men Dress Shirts 5 +1 Pack 3/8
Johnson & Smith$7.984.5★1,411 rev
Johnson & Smith Collar Extenders/Neck Extender/Wonder Button for 1/2 Size Expansion of Men Dress Shirts 5 +1 Pack 3/8
Johnson & Smith$8.044.5★6,226 rev
Newest
by launch date
Collar Extenders for Mens/Womens Shirts Soft Elastic Neck Relief Tight Collars for Dress Shirts Button Expanders! (Round Edge Clear-5Pcs)
SAKURA$13.01111 rev
20 Pcs 5 Styles Collar Extenders for Mens Shirts Elastic Neck Extenders/Button Extender for Dress Shirts Tie Suit Accessories Men for 1/2 Size Expansion of Men Dress Shirts
Okxiri$7.8491 rev
Collar Extenders for Mens Shirts (Soft Elastic Design) Tight Neck Collar Relief Collar Expander Buttons for Dress Shirts Cuff Extensions (6-Pack - Variety Black & White)
Wardrobe Hackers$21.92114 rev
Wardrobe Hackers Collar Extenders for Mens Shirts (Soft Elastic Design) Tight Neck Collar Relief Collar Expander Buttons for Dress Shirts Cuff Extensions (3-Pack - Midnight Black)
Wardrobe Hackers$14.40114 rev
PEASUG 16 Pcs Collar Extenders for Mens Shirts Elastic Button Extender for Dress Shirts Tie Neck Extenders for 1/2 Size Expansion of Men Dress Shirts Suit
PEASUG$6.66352 rev
Trending
90-day click momentumWardrobe Hackers Collar Extenders for Mens Shirts (Soft Elastic Design) Tight Neck Collar Relief Collar Expander Buttons for Dress Shirts Cuff Extensions (3-Pack - Midnight Black)
Wardrobe Hackers$14.404.5★
Collar Extenders for Mens Shirts (Soft Elastic Design) Tight Neck Collar Relief Collar Expander Buttons for Dress Shirts Cuff Extensions (6-Pack - Variety Black & White)
Wardrobe Hackers$21.924.5★
Wardrobe Hackers Collar Extenders for Mens Shirts (Black 3-Pack with Elastic Loops) Neck Relief for Tight Collars for Dress Shirts - Black Button Expanders
Wardrobe Hackers$15.404.5★
Johnson & Smith White Metal Collar Extenders Stretch Neck Extender for 1/2 Size Expansion of Men Dress Shirts 5 +1 Pack 3/8
Johnson & Smith$7.984.5★
20 Pcs 5 Styles Collar Extenders for Mens Shirts Elastic Neck Extenders/Button Extender for Dress Shirts Tie Suit Accessories Men for 1/2 Size Expansion of Men Dress Shirts
Okxiri$7.844.2★
What buyers say about collar extenders for mens shirts
What buyers praise and complain about, mined from review topics.What buyers love
“The soft elastic design is comfortable yet secure”
“Good quality”
“Just what I wanted”
“Easy to use”
“it has a decent value for money based on the value pack”
“The button size matches much better”
“Comfortable”
“I can breathe”
“Good price and nice colors”
“more comfortable against the neck”
What buyers complain about
“the neck is too tight”
“it feels like it may lose elasticity quickly”
“Had a few shirts that simply stopped fitting around my neck”
“price was too much”
“Very poor quality”
“uncomfortable shirts with undersized collars”
“they are a little fiddly to use”
“Deceiving”
“Didnt Do the Job”
“Obvious shirt is not buttoned”
Top return reasons
Common questions
- Is collar extenders for mens shirts profitable to sell on Amazon United States?
- The niche generates $468K/yr across 15 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +7.0%. Flapen's verdict: Worth a look (51/100).
- How competitive is the collar extenders for mens shirts niche?
- 10 brands and 12 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 91% of demand.
- What do buyers complain about in collar extenders for mens shirts?
- Top complaints mined from reviews: Size-Overall, Stretchability/Expandability/Elasticity, Neck Fit. The return rate is 1.3%.
- When does demand for collar extenders for mens shirts peak?
- Demand is steady year-round — the busiest month runs 1.7× the quietest.
- What does it cost to enter the collar extenders for mens shirts niche?
- Listings span $5.63–$21.92; the average listing price is $10.48 (sweet spot $15–$100). The average incumbent carries 852 reviews — the moat a new listing must climb.