period shorts
Skip itWeak search conversion (0.8%) — this niche doesn't clear our bar today.
Avg price
Incredible$28.20avg listing price — sweet spot $15–$100
Competition
Great28%top-5 click share — an open shelf
Price range
Great$9.48–$55.39cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Review moat
Okay1,595.84avg incumbent reviews — the moat a new listing must climb
Returns
Okay3.2%return rate — above 5% kills the launch gate
Brand share
Okay87%top-5 brand share — brands hold most of the demand
Market size
Okay$103K$103K/yr · 442K searches
Growth
Bad-3.9%90-day search growth — must beat 0% to launch
Conversion
Bad0.8%search→purchase rate — share of searches ending in a sale
According to Flapen's Amazon United States niche tracking, period shorts is a $103K/yr Amazon United States market (442K searches/yr). The top 5 brands hold 87% of demand. Verdict: Skip it — 48/100.
Data updated Jul 13, 2026 · scored weekly · How we score niches
period shorts market data
- Units sold / yr
- 4K–5K
- avg 0–100/product
- Revenue / yr
- $113K–$141K
- units × avg price
- Conversion rate
- 0.8%
- Avg BSR
- #3,210
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 89%
- Out of stock
- 4.6%
- Avg brand age
- 38 months
- Avg seller age
- 162 days
Competition & brand share
Clicks spread well past the top 5 (28% combined) — an open shelf where new products get seen.Brands
15 falling
Sellers
25
Top-5 brand share
87%
Top 20: 100%
Top-5 click share
28%
Top 20: 66%
Open market
10%
- Hanes21%
- TIICHOO21%
- Goat Union19%
- INNERSY18%
- THINX9%
- Neione3%
- Open — no brand owns it (9 brands, 10%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -3.9% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Top period shorts search terms
- period boxers81K/yr
- period boxers for women68K/yr
- period shorts54K/yr
- goat union period underwear35K/yr
- period boy shorts26K/yr
- period shorts for women29K/yr
- period underwear boyshorts18K/yr
- period sleep shorts14K/yr
- period boyshorts for women18K/yr
- period underwear boxers12K/yr
Top period shorts 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
TIICHOO Period Underwear for Women Heavy Flow Leakproof Menstrual Underwear Period Shorts 5 Pack(Medium 5 Black)
TIICHOO$49.054.3★194 rev
Hanes Womens Comfort Period. Boxer Briefs Super Leak Post-Partum & Period Underwear 2-Pack
Hanes$14.484.1★6,272 rev
Hanes Womens Comfort Period. Boxer Briefs Super Leak Post-Partum & Period Underwear 2-Pack
Hanes$14.614.1★6,272 rev
TIICHOO Period Underwear for Women Heavy Flow Leakproof Period Shorts for Day and Night Absorbency Pack of 3(Medium 3 Black)
TIICHOO$34.144.2★117 rev
Goat Union Overnight Period Shorts for Women - 2 Absorbent Sleep Period Boyshorts Heavy Flow Black
Goat Union$28.424.5★1,381 rev
Newest
by launch date
INNERSY Womens Period Boxers Underwear Leak Proof Menstrual Boy Shorts Panties 3-Pack(Black Large)
INNERSY$24.58101 rev
TIICHOO Womens Incontinence Underwear Period Shorts Washable LeakProof Boyshorts 5 Pack (L Black)
TIICHOO$44.819 rev
INNERSY Period Boxer for Women High Waisted Leak Proof Postpartm Menstrual Mesh BoyShorts Panties Underwear 3-Pack (Dark Vintage Medium)
INNERSY$23.46428 rev
INNERSY Period Boxer for Women High Waisted Leak Proof Postpartm Menstrual Mesh BoyShorts Panties Underwear 3-Pack (Black Large)
INNERSY$23.51428 rev
INNERSY Womens Heavy Flow Period Boyshorts Underwear High Waisted Menstrual Panties Hold 4 Tampons(Medium Solid Black)
INNERSY$17.65131 rev
Trending
90-day click momentum
TIICHOO Period Underwear for Women Heavy Flow Leakproof Period Shorts for Day and Night Absorbency Pack of 3(Medium Black/Beige/Brown)
TIICHOO$33.914.2★
Goat Union 2 Period Underwear Boxer Briefs Boy-shorts Organic Cotton Lining Hi-Waisted & Heavy Flow Rain Washed S
Goat Union$26.484.4★
Hanes Womens Comfort Period. Boxer Briefs Super Leak Post-Partum & Period Underwear 2-Pack
Hanes$14.564.1★
TIICHOO Womens Incontinence Underwear Period Shorts Washable LeakProof Boyshorts 5 Pack (L Black)
TIICHOO$44.814.2★
Hanes Womens Comfort Period. Boxer Briefs Super Leak Post-Partum & Period Underwear 2-Pack
Hanes$14.294.1★
What buyers say about period shorts
What buyers praise and complain about, mined from review topics.What buyers love
“Comfortable especially at night”
“They fit snugly”
“These pants are so good quality”
“have amazing stretch”
“Material is soft”
“Worth every penny”
“absorbs a lot”
“It is durable”
“Provide comfort and support when you need it most”
“No leaks”
What buyers complain about
“run a little small”
“They are uncomfortable to wear compared to other brands”
“had very little stretch or give to it at all”
“NOT absorbent”
“Otherwise material is thick”
“Thigh area is quite tight”
“Size up they are a bit tight in the waist line”
“Caused A Rash”
“not durable material”
“Bad seams”
Top return reasons
Common questions
- Is period shorts profitable to sell on Amazon United States?
- The niche generates $103K/yr across 70 tracked products. 2 of 5 products launched in the last 360 days are still selling. 90-day search growth is -3.9%. Flapen's verdict: Skip it (48/100).
- How competitive is the period shorts niche?
- 15 brands and 25 sellers compete. The top 5 products take 28% of clicks and top 5 brands hold 87% of demand.
- What do buyers complain about in period shorts?
- Top complaints mined from reviews: Size-Overall, Comfort-Overall, Stretchability/Expandability/Elasticity. The return rate is 3.2%.
- When does demand for period shorts peak?
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- What does it cost to enter the period shorts niche?
- Listings span $9.48–$55.39; the average listing price is $28.20 (sweet spot $15–$100). The average incumbent carries 1,596 reviews — the moat a new listing must climb.