---
title: "Collar Extenders for Mens Shirts — $468K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/arts-crafts-sewing/collar-extenders-for-mens-shirts"
last_updated: "2026-08-09T18:48:46.985Z"
locale: en
meta:
description: "Niche score 51/100 · $468K/yr market · 321K searches/yr. A concentrated shelf (top 5 take 75% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 51/100 · $468K/yr market · 321K searches/yr. A concentrated shelf (top 5 take 75% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Collar Extenders for Mens Shirts — $468K/yr Amazon US Niche (2026) - Flapen"
---
# **collar extenders for mens shirts**
**Worth a look**
Shows searches that convert (13.9% search→purchase), but a concentrated shelf (top 5 take 75% of clicks) keeps it on the watch list.
Market size 58Growth 34Conversion 96Competition 20Returns 89Price range 42Avg price 37Brand share 22Review moat 66Quality gap 62
**Conversion**
**Incredible****13.9%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Great****1.3%**
return rate — above 5% kills the launch gate
**Review moat**
**Good****852.4**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Market size**
**Good****$468K**
$468K/yr · 321K searches
**Price range**
**Okay****$5.63–$21.92**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Okay****$10.48**
avg listing price — sweet spot $15–$100
**Growth**
**Okay****+7.0%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****91%**
top-5 brand share — brand-locked demand
**Competition**
**Bad****75%**
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 ~~](https://flapen.com/research/methodology)
## **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.
8K6KSpike '24 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/us/arts-crafts-sewing/collar-extenders-for-mens-shirts/trend)
## **Top collar extenders for mens shirts search terms**
- **collar extenders for mens shirts**91K/yr-6.5%13.6% conv. - **collar extender**37K/yr+22.5%10.2% conv. - **button extender for dress shirts**30K/yr+2.9%11.3% conv. - **neck extender for dress shirt**16K/yr+32.2%14.7% conv. - **collar extenders for mens dress shirts**15K/yr+36.4%12.7% conv. - **shirt collar extenders for men**13K/yr+57.6%11.4% conv. - **dress shirt collar extender**13K/yr+1.2%11.3% conv. - **button extenders for shirts**13K/yr+1.6%5.4% conv. - **dress shirt neck extender**14K/yr-11.3%8.9% conv. - **dress shirt neck extender for men**8K/yr+49.8%13.3% conv. [**All search terms **](https://flapen.com/research/us/arts-crafts-sewing/collar-extenders-for-mens-shirts/search-terms)
## **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.
0%10%$47K20%$94K30%$140K40%$187K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 15 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**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**$15.40**4.5★611 rev](https://www.amazon.com/dp/B0CLDXRM8C) [2**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**$6.66**4.4★352 rev](https://www.amazon.com/dp/B0FD9HHMK4) [3**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**$12.59**4.5★846 rev](https://www.amazon.com/dp/B0CZBXNXYP) [4**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**$7.98**4.5★1,411 rev](https://www.amazon.com/dp/B01MZELGSX) [5**Johnson & Smith Collar Extenders/Neck Extender/Wonder Button for 1/2 Size Expansion of Men Dress Shirts 5 +1 Pack 3/8**Johnson & Smith**$8.04**4.5★6,226 rev](https://www.amazon.com/dp/B01N22G5UV)
**~~View all top sellers →~~**
### **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**$13.01**111 rev10mo ago](https://www.amazon.com/dp/B0FR5BV429) [**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**$7.84**91 rev11mo ago](https://www.amazon.com/dp/B0F89VXFQ1) [**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**$21.92**114 rev1y ago](https://www.amazon.com/dp/B0FDVLDJBF) [**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**$14.40**114 rev1y ago](https://www.amazon.com/dp/B0FDVL9M8X) [**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**$6.66**352 rev1y ago](https://www.amazon.com/dp/B0FD9HHMK4)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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**$14.40**4.5★**▲ 167%**](https://www.amazon.com/dp/B0FDVL9M8X) [**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**$21.92**4.5★**▲ 165%**](https://www.amazon.com/dp/B0FDVLDJBF) [**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**$15.40**4.5★**▲ 88%**](https://www.amazon.com/dp/B0CLDXRM8C) [**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**$7.98**4.5★**▲ 52%**](https://www.amazon.com/dp/B01MZELGSX) [**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**$7.84**4.2★**▲ 29%**](https://www.amazon.com/dp/B0F89VXFQ1)
**~~View all trending →~~**
## **What buyers say about collar extenders for mens shirts**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Stretchability/Expandability/Elasticity**14%
*“The soft elastic design is comfortable yet secure”*
**Quality-Overall**13%
*“Good quality”*
**Advertised Vs Actual Product**11%
*“Just what I wanted”*
**Ease Of Use**9%
*“Easy to use”*
**Value For Money**8%
*“it has a decent value for money based on the value pack”*
**Size-Overall**6%
*“The button size matches much better”*
**Comfort-Overall**6%
*“Comfortable”*
**Breathability**4%
*“I can breathe”*
**Color**4%
*“Good price and nice colors”*
**Neck Fit**3%
*“more comfortable against the neck”*
### **What buyers complain about **
**Size-Overall**21%
*“the neck is too tight”*
**Stretchability/Expandability/Elasticity**10%
*“it feels like it may lose elasticity quickly”*
**Neck Fit**7%
*“Had a few shirts that simply stopped fitting around my neck”*
**Value For Money**4%
*“price was too much”*
**Quality-Overall**4%
*“Very poor quality”*
**Collar Quality**3%
*“uncomfortable shirts with undersized collars”*
**Ease Of Use**3%
*“they are a little fiddly to use”*
**Advertised Vs Actual Product**3%
*“Deceiving”*
**Functionality-Overall**3%
*“Didnt Do the Job”*
**Fastener Quality**2%
*“Obvious shirt is not buttoned”*
### **Top return reasons **
**Size-Overall**29%
**Stretchability/Expandability/Elasticity**13%
**Functionality-Overall**8%
**Neck Fit**8%
**Collar Quality**7%
**Advertised Vs Actual Product**5%
**Defective Material/Parts**4%
**Length**4%
**Material Quality**4%
**Value For Money**4%
## **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.
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