boys athletic underwear
Skip itBrand-locked demand (top 5 brands take 94% of clicks) — this niche doesn't clear our bar today.
Avg price
Incredible$23.81avg listing price — sweet spot $15–$100
Price range
Great$13.66–$37.34cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Good49%top-5 click share — leaders hold, buyers still browse
Growth
Good+22.1%90-day search growth — must beat 0% to launch
Returns
Okay3.7%return rate — above 5% kills the launch gate
Review moat
Okay2,433.29avg incumbent reviews — the moat a new listing must climb
Conversion
Okay2.2%search→purchase rate — share of searches ending in a sale
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Market size
Bad$84K$84K/yr · 160K searches
Brand share
Bad94%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, boys athletic underwear is a $84K/yr Amazon United States market (160K searches/yr). The top 5 brands hold 94% of demand. Demand peaks in Aug–Dec. Verdict: Skip it — 42/100.
Data updated Jul 8, 2026 · scored weekly · How we score niches
boys athletic underwear market data
- Units sold / yr
- 4K–5K
- avg 100–250/product
- Revenue / yr
- $95K–$119K
- units × avg price
- Conversion rate
- 2.2%
- Avg BSR
- #28
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 95%
- Out of stock
- 13.7%
- Avg brand age
- 42 months
- Avg seller age
- 115 days
Competition & brand share
The top 5 products take 49% of clicks — established leaders, but buyers still shop beyond them.Brands
9 falling
Sellers
35
Top-5 brand share
94%
Top 20: 100%
Top-5 click share
49%
Top 20: 78%
Open market
4%
- Nike48%
- BAMBOO COOL21%
- Under Armour10%
- PSD9%
- Hanes6%
- PUMA2%
- Open — no brand owns it (3 brands, 4%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +22.1% search growth over the last 90 days.Peak months: Aug, Dec · busiest ÷ quietest = 2.5×
Top boys athletic underwear search terms
- nike underwear boys50K/yr
- nike boys underwear26K/yr
- boys nike underwear25K/yr
- boys nike boxer briefs8K/yr
- nike boxers for boys9K/yr
- boys nike underwear size 10-128K/yr
- nike boxer briefs boys7K/yr
- nike boys boxer briefs6K/yr
- boys underwear nike5K/yr
- nike youth underwear boys4K/yr
Top boys athletic 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
3-Pack Dri-Fit Boxer Briefs
Nike$16.874.6★1,124 rev
3-Pack Dri-Fit Boxer Briefs
Nike$16.934.6★1,124 rev
3-Pack Dri-Fit Boxer Briefs
Nike$20.024.6★1,124 rev
BAMBOO COOL Boys Underwear Moisture-Wicking Brethable Boxer Briefs Soft Lightweight Tag-Free with Fly Pouch 6-Pack
BAMBOO COOL$32.244.8★869 rev
3-Pack Dri-Fit Boxer Briefs
Nike$21.014.6★1,124 rev
Newest
by launch date
BAMBOO COOL Boys Underwear Lightweight Breathable Moisture-Wicking Boxer Briefs U-open Pouch Ultra Soft Tag Free 6-Pack
BAMBOO COOL$29.81156 rev
BAMBOO COOL Boys Boxer Briefs 6-18Y Underwear Moisture-Wicking Lightweight and Ultra Soft 6-Pack
BAMBOO COOL$34.14500 rev
PSD Boys Boxer Briefs Black Cotton 3-Pack Comfortable Breathable Underwear for Boys Boys Underwear Ages 6-16 Medium
PSD$29.24728 rev
BAMBOO COOL Boys Underwear Moisture-Wicking Brethable Boxer Briefs Soft Lightweight Tag-Free with Fly Pouch 6-Pack
BAMBOO COOL$32.24869 rev
BAMBOO COOL BoysMoisture Wicking & Breathable Mesh Underwear Soft Tagless Performance No Ride Up Boxer Briefs 6 Pack
BAMBOO COOL$31.48201 rev
Trending
90-day click momentum
Under Armour Boys Multipack Performance Tech Boxer Brief Lightweight & Smooth Stretch Fit Midnight Navy/Print X-Large
Under Armour$16.654.7★
3-Pack Dri-Fit Boxer Briefs
Nike$22.074.6★
3-Pack Dri-Fit Boxer Briefs
Nike$21.014.6★
BAMBOO COOL BoysMoisture Wicking & Breathable Mesh Underwear Soft Tagless Performance No Ride Up Boxer Briefs 6 Pack
BAMBOO COOL$31.634.6★
BAMBOO COOL Boys Boxer Briefs 6-18Y Underwear Moisture-Wicking Lightweight and Ultra Soft 6-Pack
BAMBOO COOL$34.144.8★
What buyers say about boys athletic underwear
What buyers praise and complain about, mined from review topics.What buyers love
“Very comfortable”
“They fit ok on my very slim son”
“Nice quality and fits like described”
“Buttery Softness”
“It stretches in comfort and smooth and soft on the skin”
“They are breathable”
“Good deal”
“did not shrink when I washed it”
“These boxers are a VERY breathable mesh fabric”
“As described”
What buyers complain about
“Size runs very small”
“Cheap”
“you can literally see through them”
“Durability concern”
“it looks uncomfortable”
“While it is stretch and lightweight, it runs small for a medium”
“Not worth the money”
“And while the waist fits the length is way too short”
“like see through thin”
“they were all solid black”
Top return reasons
Common questions
- Is boys athletic underwear profitable to sell on Amazon United States?
- The niche generates $84K/yr across 42 tracked products. 90-day search growth is +22.1%. Flapen's verdict: Skip it (42/100).
- How competitive is the boys athletic underwear niche?
- 9 brands and 35 sellers compete. The top 5 products take 49% of clicks and top 5 brands hold 94% of demand.
- What do buyers complain about in boys athletic underwear?
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Transparency. The return rate is 3.7%.
- When does demand for boys athletic underwear peak?
- Demand peaks in Aug–Dec; the busiest month runs 2.5× the quietest.
- What does it cost to enter the boys athletic underwear niche?
- Listings span $13.66–$37.34; the average listing price is $23.81 (sweet spot $15–$100). The average incumbent carries 2,433 reviews — the moat a new listing must climb.