workout underwear
Skip itA small market ($69K/yr) — this niche doesn't clear our bar today.
Avg price
Great$21.89avg listing price — sweet spot $15–$100
Competition
Great27%top-5 click share — an open shelf
Price range
Great$9.48–$36.23cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Returns
Okay3.0%return rate — above 5% kills the launch gate
Brand share
Okay85%top-5 brand share — brands hold most of the demand
Growth
Bad-3.5%90-day search growth — must beat 0% to launch
Review moat
Bad9,063.61avg incumbent reviews — the moat a new listing must climb
Conversion
Bad1.5%search→purchase rate — share of searches ending in a sale
Market size
Bad$69K$69K/yr · 208K searches
According to Flapen's Amazon United States niche tracking, workout underwear is a $69K/yr Amazon United States market (208K searches/yr). The top 5 brands hold 85% of demand. Verdict: Skip it — 45/100.
Data updated Jul 13, 2026 · scored weekly · How we score niches
workout underwear market data
- Units sold / yr
- 3K–4K
- avg 0–100/product
- Revenue / yr
- $66K–$88K
- units × avg price
- Conversion rate
- 1.5%
- Avg BSR
- #71
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 93%
- Out of stock
- 0.7%
- Avg brand age
- 40 months
- Avg seller age
- 150 days
Competition & brand share
Clicks spread well past the top 5 (27% combined) — an open shelf where new products get seen.Brands
19 rising
Sellers
73
Top-5 brand share
85%
Top 20: 100%
Top-5 click share
27%
Top 20: 61%
Open market
12%
- Under Armour50%
- voenxe16%
- GRANKEE9%
- Reebok5%
- BAMBOO COOL4%
- SHARICCA3%
- Open — no brand owns it (13 brands, 12%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -3.5% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.5×
Top workout underwear search terms
- workout thongs for women33K/yr
- under armour underwear women32K/yr
- adidas underwear for women17K/yr
- ambar activewear underwear7K/yr
- under armour womens underwear12K/yr
- underarmour underwear for women12K/yr
- under armour thongs for women11K/yr
- new balance underwear women12K/yr
- womens running underwear7K/yr
- running underwear women6K/yr
Top workout underwear 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
voenxe Seamless Women Underwear Thongs No Show Ladies Thong Invisible No Line Breathable Comfortable Panties Undies Womens No Seam Soft Wide Gusset Tanga Legging Underpants for Woman 5-Pack
voenxe$13.484.6★72,407 rev
Under Armour Womens 3-pack Pure Stretch No Show Thong Underwear All-day Comfort Fit & Ultra-soft Black Solid Medium
Under Armour$27.254.6★361 rev
Under Armour Womens 3-pack Pure Stretch No Show Hipster Underwear All-day Comfort Fit & Ultra-soft Shaded Fuchsia X-Small
Under Armour$22.524.3★518 rev
Under Armour Womens 3-pack Pure Stretch No Show Bikini Underwear All-day Comfort Fit & Ultra-soft Rebel Pink Small
Under Armour$24.014.0★262 rev
GRANKEE Womens High Waisted Breathable Seamless Thong Panties No Show Workout Underwear Comfortable Cotton Crotch 6 Pack(Summer 6 pack L)
GRANKEE$24.054.6★26,410 rev
Newest
by launch date
Reebok Womens Hipster Panties 5 Pack Soft Stretch Underwear for Women
Reebok$20.596,390 rev
EclatBling Seamless Workout Thongs for Women - No Show Womens Underwear with Wide Gusset Invisible Panties Nude&Black 2 Pack
EclatBling$10.91282 rev
Under Armour Womens 3-pack Pure Stretch No Show Hipster Underwear All-day Comfort Fit & Ultra-soft Tourmaline Pink Small
Under Armour$24.17518 rev
Under Armour Womens 3-pack Pure Stretch No Show Hipster Underwear All-day Comfort Fit & Ultra-soft Shaded Fuchsia X-Small
Under Armour$22.52518 rev
Under Armour Womens 3-pack Pure Stretch No Show Bikini Underwear All-day Comfort Fit & Ultra-soft Rebel Pink Small
Under Armour$24.01262 rev
Trending
90-day click momentumUnder Armour Womens 3-pack Pure Stretch No Show Hipster Underwear All-day Comfort Fit & Ultra-soft Tourmaline Pink Small
Under Armour$24.174.3★
Under Armour Womens 3-pack Pure Stretch No Show Bikini Underwear All-day Comfort Fit & Ultra-soft Canyon Pink Medium
Under Armour$27.664.0★
Under Armour Womens 3-pack Pure Stretch No Show Thong Underwear All-day Comfort Fit & Ultra-soft Gray Dawn Small
Under Armour$23.694.6★
Under Armour Womens 3-pack Pure Stretch No Show Hipster Underwear All-day Comfort Fit & Ultra-soft Black Solid X-Large
Under Armour$23.964.3★
Under Armour Womens 3-pack Pure Stretch No Show Hipster Underwear All-day Comfort Fit & Ultra-soft Shaded Fuchsia X-Small
Under Armour$22.524.3★
What buyers say about workout underwear
What buyers praise and complain about, mined from review topics.What buyers love
“Get these and stay comfy all day”
“These fit smooth”
“Really soft”
“true to size, great quality”
“Material is soft”
“Great value”
“Comfortable and breathable”
“Comfortable stretch”
“The colors are beautiful”
“As advertised”
What buyers complain about
“longer than expected”
“the gusset was so thick you could see it through my pants”
“Cheaply made”
“The material were not good”
“So uncomfortable”
“They dont stretch as much as I would like so I would size up”
“Falling apart”
“Not as described”
“Bad seams”
“a pad doesn't even stick to it”
Top return reasons
Common questions
- Is workout underwear profitable to sell on Amazon United States?
- The niche generates $69K/yr across 69 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is -3.5%. Flapen's verdict: Skip it (45/100).
- How competitive is the workout underwear niche?
- 19 brands and 73 sellers compete. The top 5 products take 27% of clicks and top 5 brands hold 85% of demand.
- What do buyers complain about in workout underwear?
- Top complaints mined from reviews: Size-Overall, Thickness, Quality-Overall. The return rate is 3.0%.
- When does demand for workout underwear peak?
- Demand is steady year-round — the busiest month runs 1.5× the quietest.
- What does it cost to enter the workout underwear niche?
- Listings span $9.48–$36.23; the average listing price is $21.89 (sweet spot $15–$100). The average incumbent carries 9,064 reviews — the moat a new listing must climb.