---
title: "Period Shorts — $103K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/period-shorts"
last_updated: "2026-08-11T20:28:08.409Z"
locale: en
meta:
description: "Niche score 48/100 · $103K/yr market · 442K searches/yr · $28.20 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · $103K/yr market · 442K searches/yr · $28.20 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Period Shorts — $103K/yr Amazon US Niche (2026) - Flapen"
---
# **period shorts**
**Skip it**
Weak search conversion (0.8%) — this niche doesn't clear our bar today.
Market size 25Growth 23Conversion 10Competition 87Returns 48Price range 85Avg price 95Brand share 30Review moat 49Quality gap 76
**Avg price**
**Incredible****$28.20**
avg listing price — sweet spot $15–$100
**Competition**
**Great****28%**
top-5 click share — an open shelf
**Price range**
**Great****$9.48–$55.39**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Okay****1,595.84**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Okay****3.2%**
return rate — above 5% kills the launch gate
**Brand share**
**Okay****87%**
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**
**Bad****0.8%**
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 ~~](https://flapen.com/research/methodology)
## **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.
12K8KPrime Day '25Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/period-shorts/trend)
## **Top period shorts search terms**
- **period boxers**81K/yr+4.7%0.8% conv. - **period boxers for women**68K/yr-15.9%0.6% conv. - **period shorts**54K/yr+19.3%0.7% conv. - **goat union period underwear**35K/yr-7.9%1.0% conv. - **period boy shorts**26K/yr-28.8%0.9% conv. - **period shorts for women**29K/yr-3.3%0.7% conv. - **period underwear boyshorts**18K/yr-13.4%0.8% conv. - **period sleep shorts**14K/yr+17.3%0.6% conv. - **period boyshorts for women**18K/yr-13.1%0.8% conv. - **period underwear boxers**12K/yr+6.1%0.8% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/period-shorts/search-terms)
## **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.
0%2%$2K4%$4K6%$6K8%$8K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**TIICHOO Period Underwear for Women Heavy Flow Leakproof Menstrual Underwear Period Shorts 5 Pack(Medium 5 Black)**TIICHOO**$49.05**4.3★194 rev](https://www.amazon.com/dp/B0DPFX4JFF) [2**Hanes Womens Comfort Period. Boxer Briefs Super Leak Post-Partum & Period Underwear 2-Pack**Hanes**$14.48**4.1★6,272 rev](https://www.amazon.com/dp/B0CMF12MK4) [3**Hanes Womens Comfort Period. Boxer Briefs Super Leak Post-Partum & Period Underwear 2-Pack**Hanes**$14.61**4.1★6,272 rev](https://www.amazon.com/dp/B0CMDR7YHH) [4**TIICHOO Period Underwear for Women Heavy Flow Leakproof Period Shorts for Day and Night Absorbency Pack of 3(Medium 3 Black)**TIICHOO**$34.14**4.2★117 rev](https://www.amazon.com/dp/B0DGLKZX4G) [5**Goat Union Overnight Period Shorts for Women - 2 Absorbent Sleep Period Boyshorts Heavy Flow Black**Goat Union**$28.42**4.5★1,381 rev](https://www.amazon.com/dp/B08KSCTV5G)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**INNERSY Womens Period Boxers Underwear Leak Proof Menstrual Boy Shorts Panties 3-Pack(Black Large)**INNERSY**$24.58**101 rev11mo ago](https://www.amazon.com/dp/B0F9WF59CK) [**TIICHOO Womens Incontinence Underwear Period Shorts Washable LeakProof Boyshorts 5 Pack (L Black)**TIICHOO**$44.81**9 rev1y ago](https://www.amazon.com/dp/B0FDWRQ5YM) [**INNERSY Period Boxer for Women High Waisted Leak Proof Postpartm Menstrual Mesh BoyShorts Panties Underwear 3-Pack (Dark Vintage Medium)**INNERSY**$23.46**428 rev1y ago](https://www.amazon.com/dp/B0DXDVBD44) [**INNERSY Period Boxer for Women High Waisted Leak Proof Postpartm Menstrual Mesh BoyShorts Panties Underwear 3-Pack (Black Large)**INNERSY**$23.51**428 rev1y ago](https://www.amazon.com/dp/B0DXDSB25J) [**INNERSY Womens Heavy Flow Period Boyshorts Underwear High Waisted Menstrual Panties Hold 4 Tampons(Medium Solid Black)**INNERSY**$17.65**131 rev1y ago](https://www.amazon.com/dp/B0DSZGY25Q)
**~~View all new products →~~**
### **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**$33.91**4.2★**▲ 39%**](https://www.amazon.com/dp/B0DGLJBDPK) [**Goat Union 2 Period Underwear Boxer Briefs Boy-shorts Organic Cotton Lining Hi-Waisted & Heavy Flow Rain Washed S**Goat Union**$26.48**4.4★**▲ 39%**](https://www.amazon.com/dp/B0C5W67M79) [**Hanes Womens Comfort Period. Boxer Briefs Super Leak Post-Partum & Period Underwear 2-Pack**Hanes**$14.56**4.1★**▲ 36%**](https://www.amazon.com/dp/B0CMF9CVRY) [**TIICHOO Womens Incontinence Underwear Period Shorts Washable LeakProof Boyshorts 5 Pack (L Black)**TIICHOO**$44.81**4.2★**▲ 22%**](https://www.amazon.com/dp/B0FDWRQ5YM) [**Hanes Womens Comfort Period. Boxer Briefs Super Leak Post-Partum & Period Underwear 2-Pack**Hanes**$14.29**4.1★**▲ 21%**](https://www.amazon.com/dp/B0CMF5NTXM)
**~~View all trending →~~**
## **What buyers say about period shorts**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Comfort-Overall**34%
*“Comfortable especially at night”*
**Size-Overall**12%
*“They fit snugly”*
**Quality-Overall**6%
*“These pants are so good quality”*
**Stretchability/Expandability/Elasticity**4%
*“have amazing stretch”*
**Soft Feel**4%
*“Material is soft”*
**Value For Money**4%
*“Worth every penny”*
**Absorbency**2%
*“absorbs a lot”*
**Durability**2%
*“It is durable”*
**Support-Overall**2%
*“Provide comfort and support when you need it most”*
**Leak-Proof**1%
*“No leaks”*
### **What buyers complain about **
**Size-Overall**18%
*“run a little small”*
**Comfort-Overall**11%
*“They are uncomfortable to wear compared to other brands”*
**Stretchability/Expandability/Elasticity**4%
*“had very little stretch or give to it at all”*
**Absorbency**4%
*“NOT absorbent”*
**Thickness**4%
*“Otherwise material is thick”*
**Thigh Fit**3%
*“Thigh area is quite tight”*
**Waist Fit**3%
*“Size up they are a bit tight in the waist line”*
**Allergies**3%
*“Caused A Rash”*
**Material Quality**3%
*“not durable material”*
**Stitch/Finish/Polish**2%
*“Bad seams”*
### **Top return reasons **
**Size-Overall**56%
**Waist Fit**8%
**Thigh Fit**6%
**Material Quality**5%
**Comfort-Overall**3%
**Value For Money**3%
**Advertised Vs Actual Product**3%
**Length**2%
**Shape/Style**1%
**Thin**1%
## **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.
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