silk long underwear mens
Skip itSoft demand (-77.9% this quarter) — this niche doesn't clear our bar today.
Avg price
Incredible$43.11avg listing price — sweet spot $15–$100
Price range
Incredible$15.90–$74.66cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Good48%top-5 click share — leaders hold, buyers still browse
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Review moat
Okay1,996.68avg incumbent reviews — the moat a new listing must climb
Brand share
Okay88%top-5 brand share — brands hold most of the demand
Returns
Bad6.3%return rate — above 5% kills the launch gate
Conversion
Bad0.5%search→purchase rate — share of searches ending in a sale
Market size
Bad$12K$12K/yr · 60K searches
Growth
Bad-77.9%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, silk long underwear mens is a $12K/yr Amazon United States market (60K searches/yr). The top 5 brands hold 88% of demand. Demand peaks in Jan–Feb–Nov–Dec. Verdict: Skip it — 33/100.
Data updated Jul 21, 2026 · scored weekly · How we score niches
silk long underwear mens market data
- Units sold / yr
- 750–1K
- avg 0–100/product
- Revenue / yr
- $32K–$43K
- units × avg price
- Conversion rate
- 0.5%
- Avg BSR
- #983
- Page quality
- 0%
- Prime
- 88%
- Sponsored
- 85%
- Out of stock
- 10.6%
- Avg brand age
- 61 months
- Avg seller age
- 168 days
Competition & brand share
The top 5 products take 48% of clicks — established leaders, but buyers still shop beyond them.Brands
12 rising
Sellers
19
Top-5 brand share
88%
Top 20: 100%
Top-5 click share
48%
Top 20: 88%
Open market
9%
- Viamulion31%
- Terramar23%
- Grenasasilk22%
- WEERTI8%
- HMRICHNO14%
- ZEEREE3%
- Open — no brand owns it (6 brands, 9%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -77.9% search growth over the last 90 days.Peak months: Jan, Feb, Nov, Dec · busiest ÷ quietest = 16.3×
Top silk long underwear mens search terms
- silk long underwear mens16K/yr
- mens silk long underwear11K/yr
- silk thermal underwear men8K/yr
- silk long johns for men6K/yr
- silk base layer mens4K/yr
- mens silk long johns4K/yr
- mens silk long underwear bottoms4K/yr
- silk long underwear for men3K/yr
- silk thermals for men3K/yr
Top silk long underwear mens 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 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Grenasasilk Mens Silk Long Johns Mulberry Silk Long Underwear V-Neck Breathable Thermal Underwear Sets & Undergarments (XL Grey)
Grenasasilk$67.854.4★516 rev
100% Silk Thermasilk Filament Baselayer Bottom Pant
Terramar$56.724.3★482 rev
Mens Pure Mulberry Silk Knitted Thermal Underwear Long Johns Bottom(Pants Only) Black
Viamulion$41.004.3★99 rev
WEERTI Thermal Underwear for Men Long Johns with Fleece Lined Base Layer Men Cold Weather Top Bottom-Black L
WEERTI$27.824.6★13,949 rev
Mens Pure Mulberry Silk Knitted Thermal Underwear Long Johns Bottom(Pants Only) White
Viamulion$41.264.3★99 rev
Newest
by launch date
Men Ice Silk Thermal Bottoms Sports Elastic Breathable Underwear Leggings Pants Long Johns Grey
HMRICHNO1$20.1011 rev
Viamulion Mens Pure Mulberry Silk Knitted Thermal Underwear SetGREY L
Viamulion$74.6621 rev
Viamulion Mens Pure Mulberry Silk Knitted Thermal Underwear SetWHITE L
Viamulion$74.2621 rev
Viamulion Mens Pure Mulberry Silk Knitted Thermal Underwear SetBLACK L
Viamulion$73.5121 rev
Mens Silk Base Layer Bottom Pants Mulberry Silk Lightweight Thermal Underwear Long Johns (US Alpha X-Large Regular Regular Black)
ZEEREE$23.8523 rev
Trending
90-day click momentumGrenasasilk Mens Silk Long Johns Mulberry Silk Long Underwear V-Neck Breathable Thermal Underwear Sets & Undergarments (M Grey)
Grenasasilk$66.134.4★
Mens Silk Base Layer Bottom Pants Mulberry Silk Lightweight Thermal Underwear Long Johns (US Alpha X-Large Regular Regular Black)
ZEEREE$23.854.2★
Thermal Underwear for Men Winter Hunting Gear Sport Long Johns Base Layer Top and Bottom Set Midweight Army Green L
CL convallaria$22.974.6★
Viamulion Mens Pure Mulberry Silk Knitted Thermal Underwear SetWHITE L
Viamulion$74.264.8★
Grenasasilk Mens Silk Long Johns Mulberry Silk Long Underwear V-Neck Breathable Thermal Underwear Sets & Undergarments (L Grey)
Grenasasilk$66.374.4★
What buyers say about silk long underwear mens
What buyers praise and complain about, mined from review topics.What buyers love
“Soft material and keeps you warm”
“Nice and snug”
“Excellent product”
“Comfortable and accurately sized”
“Worth it”
“As described”
“Smooth as silk of course”
“comfortable and high-quality fabric”
“These kept me pretty warm while I worked outdoors in the snow”
“not heavy”
What buyers complain about
“Sizes run a little bit bigger than expected”
“Go for any color other than black if you're going to get some”
“Needed these today so very unfortunate they won't keep anyone warm”
“Child size and unknown material”
“the waist band is very uncomfortable”
“cheaply produced product”
“wont last more than 1 season”
“Thicker than I expected”
“Ends do not wrap on wrists and legs”
“Flap does not stay closed”
Top return reasons
Common questions
- Is silk long underwear mens profitable to sell on Amazon United States?
- The niche generates $12K/yr across 34 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -77.9%. Flapen's verdict: Skip it (33/100).
- How competitive is the silk long underwear mens niche?
- 12 brands and 19 sellers compete. The top 5 products take 48% of clicks and top 5 brands hold 88% of demand.
- What do buyers complain about in silk long underwear mens?
- Top complaints mined from reviews: Size-Overall, Color, Warmth. The return rate is 6.3% — above our launch gate.
- When does demand for silk long underwear mens peak?
- Demand peaks in Jan–Feb–Nov–Dec; the busiest month runs 16.3× the quietest.
- What does it cost to enter the silk long underwear mens niche?
- Listings span $15.90–$74.66; the average listing price is $43.11 (sweet spot $15–$100). The average incumbent carries 1,997 reviews — the moat a new listing must climb.