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36

sweat proof under shirt for man

Skip it

A small market ($28K/yr) — this niche doesn't clear our bar today.

Market size 7Growth 33Conversion 19Competition 44Returns 44Price range 95Avg price 95Brand share 13Review moat 21Quality gap 53

Avg price

Incredible$31.38

avg listing price — sweet spot $15–$100

Price range

Incredible$15.44–$42.93

cheapest to priciest tracked listing — scored on the share inside $15–$100

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Competition

Okay59%

top-5 click share — leaders hold, buyers still browse

Returns

Okay3.5%

return rate — above 5% kills the launch gate

Growth

Okay+6.8%

90-day search growth — must beat 0% to launch

Review moat

Bad11,805.04

avg incumbent reviews — the moat a new listing must climb

Conversion

Bad1.5%

search→purchase rate — share of searches ending in a sale

Brand share

Bad95%

top-5 brand share — brand-locked demand

Market size

Bad$28K

$28K/yr · 58K searches

According to Flapen's Amazon United States niche tracking, sweat proof under shirt for man is a $28K/yr Amazon United States market (58K searches/yr). The top 5 brands hold 95% of demand. Demand peaks in Aug. Verdict: Skip it — 36/100.

Data updated Jul 21, 2026 · scored weekly · How we score niches

sweat proof under shirt for man market data

Units sold / yr
1K–2K
avg 0–100/product
Revenue / yr
$39K–$47K
units × avg price
Conversion rate
1.5%
Avg BSR
#169
Page quality
0%
Prime
100%
Sponsored
87%
Out of stock
0.3%
Avg brand age
47 months
Avg seller age
151 days

Competition & brand share

The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.

Brands

8 falling

Sellers

18

Top-5 brand share

95%

Top 20: 100%

Top-5 click share

59%

Top 20: 96%

Open market

3%

  • THOMPSON TEE62%
  • Hanes14%
  • Ejis11%
  • DEEPVTEE4%
  • BAMBOO COOL3%
  • TopDry2%
  • Open — no brand owns it (2 brands, 3%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +6.8% search growth over the last 90 days.
3K2KSpike '24Prime Day '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Aug · busiest ÷ quietest = 1.7×

Top sweat proof under shirt for man search terms

  • sweatproof undershirts28K/yr
  • sweat proof undershirt for men15K/yr
  • sweatproof undershirt4K/yr
  • sweat proof undershirt3K/yr
  • sweatproof undershirt for men3K/yr
  • thompson tees4K/yr
  • anti sweat undershirt1K/yr
All search terms

Top sweat proof under shirt for man 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%$3K20%$6K30%$8K40%$11K101001K10K100K1.0M Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 23 tracked products in this niche — three views at once, no toggling.

What buyers say about sweat proof under shirt for man

What buyers praise and complain about, mined from review topics.

What buyers love

Size-Overall16%

“Amazing fit”

Comfort-Overall11%

“They are very comfortable”

Quality-Overall10%

“Great quality and arrived on time,”

Material Quality9%

“Good material”

Advertised Vs Actual Product7%

“As advertise”

Value For Money7%

“Great value”

Soft Feel7%

“SUPER SOFT”

Sweat Resistance4%

“A great option if you deal with sweating”

Moist/Dry3%

“These shirts are moisture-wickimg”

Shrinkage Resistance2%

“Very soft and it dont shrink when wash my husband love these shirts for work”

What buyers complain about

Size-Overall19%

“to big”

Thickness12%

“Thin”

Material Quality7%

“Cheap Material”

Sweat Resistance6%

“they DO let sweat go through”

Color5%

“the dye from them bleeds out”

Quality-Overall4%

“Very poor quality”

Gap/Hole4%

“also a hole came in the front side after 1st wash”

Smell3%

“Stink funk chemical smell”

Durability3%

“Did not hold up very long before needing to be replaced”

Stitch/Finish/Polish3%

“Stitching is minimal”

Top return reasons

Size-Overall46%
Material Quality9%
Thin7%
Length5%
Neck Fit4%
Chest Fit4%
Arm Fit3%
Advertised Vs Actual Product3%
Quality-Overall2%
Transparency2%

Common questions

Is sweat proof under shirt for man profitable to sell on Amazon United States?
The niche generates $28K/yr across 23 tracked products. 90-day search growth is +6.8%. Flapen's verdict: Skip it (36/100).
How competitive is the sweat proof under shirt for man niche?
8 brands and 18 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 95% of demand.
What do buyers complain about in sweat proof under shirt for man?
Top complaints mined from reviews: Size-Overall, Thickness, Material Quality. The return rate is 3.5%.
When does demand for sweat proof under shirt for man peak?
Demand peaks in Aug; the busiest month runs 1.7× the quietest.
What does it cost to enter the sweat proof under shirt for man niche?
Listings span $15.44–$42.93; the average listing price is $31.38 (sweet spot $15–$100). The average incumbent carries 11,805 reviews — the moat a new listing must climb.