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50

patella tendon knee strap

Worth a look

Shows beatable incumbent ratings (4.2★), but a deep review moat (5,678 avg reviews) keeps it on the watch list.

Market size 49Growth 50Conversion 76Competition 26Returns 61Price range 30Avg price 38Brand share 52Review moat 24Quality gap 80

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Conversion

Great7.2%

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

Returns

Good2.6%

return rate — above 5% kills the launch gate

Brand share

Good74%

top-5 brand share — brands hold most of the demand

Growth

Good+20.4%

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

Market size

Okay£269K

£269K/yr · 356K searches

Avg price

Okay£10.56

avg listing price — sweet spot $15–$100

Price range

Okay£4.31–£19.55

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

Competition

Okay69%

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

Review moat

Bad5,678.43

avg incumbent reviews — the moat a new listing must climb

According to Flapen's Amazon United Kingdom niche tracking, patella tendon knee strap is a £269K/yr Amazon United Kingdom market (356K searches/yr). The top 5 brands hold 74% of demand. Demand peaks in May. Verdict: Worth a look — 50/100.

Data updated Jul 24, 2026 · scored weekly · How we score niches

patella tendon knee strap market data

Units sold / yr
20K–25K
avg 1,250–1,500/product
Revenue / yr
£211K–£264K
units × avg price
Conversion rate
7.2%
Avg BSR
#62
Page quality
0%
Prime
100%
Sponsored
90%
Out of stock
1.4%
Avg brand age
39 months
Avg seller age
186 days

Competition & brand share

The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.

Brands

16 rising

Sellers

22

Top-5 brand share

74%

Top 20: 100%

Top-5 click share

69%

Top 20: 99%

Open market

22%

  • Bodyprox23%
  • CAMBIVO22%
  • Dualeco19%
  • Better Bones6%
  • ACWOO5%
  • GOUNOD4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +20.4% search growth over the last 90 days.
13K8KSpike '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: May · busiest ÷ quietest = 2.2×

Top patella tendon knee strap search terms

  • patella tendon knee strap84K/yr
  • knee strap60K/yr
  • knee straps for joint pain33K/yr
  • patella knee strap19K/yr
  • patella knee support30K/yr
  • knee straps19K/yr
  • patella strap15K/yr
  • knee patella support men11K/yr
  • patella straps11K/yr
  • osgood schlatter knee support15K/yr
All search terms

Top patella tendon knee strap 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%£27K20%£54K30%£81K40%£108K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 21 tracked products in this niche — three views at once, no toggling.

What buyers say about patella tendon knee strap

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

What buyers love

Quality-Overall16%

“Excellent product”

Comfort-Overall15%

“Good very comfortable”

Joint Pain12%

“This has really helped with my knee pain”

Advertised Vs Actual Product8%

“As advertised”

Pain Relief-Overall7%

“No pain, discomfort, nothing”

Value For Money7%

“great value”

Size-Overall7%

“Easy to fit”

Ease Of Use6%

“Easy to use”

Efficiency3%

“Effective”

Adjustability/Rotatability/Reclining2%

“can be adjusted”

What buyers complain about

Size-Overall23%

“Too small”

Comfort-Overall10%

“uncomfortable to wear”

Pain Relief-Overall6%

“the pain has been awful”

Strap/String Quality5%

“Bulky straps”

Grip4%

“kept slipping down”

Velcro Quality4%

“I feel like the Velcro is losing its stickiness after just a few weeks”

Functionality-Overall4%

“Not very effective”

Quality-Overall4%

“Cheap and nasty at a cost”

Durability2%

“Not durable”

Advertised Vs Actual Product2%

“It was an expensive mistake falling for the advertising hype”

Top return reasons

Size-Overall58%
Comfort-Overall12%
Joint Pain8%
Functionality-Overall5%
Quality-Overall2%
Advertised Vs Actual Product2%
Grip2%
Strap/String Quality1%
Strength1%
Defective Material/Parts1%

Common questions

Is patella tendon knee strap profitable to sell on Amazon United Kingdom?
The niche generates £269K/yr across 21 tracked products. 5 of 9 products launched in the last 360 days are still selling. 90-day search growth is +20.4%. Flapen's verdict: Worth a look (50/100).
How competitive is the patella tendon knee strap niche?
16 brands and 22 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 74% of demand.
What do buyers complain about in patella tendon knee strap?
Top complaints mined from reviews: Size-Overall, Comfort-Overall, Pain Relief-Overall. The return rate is 2.6%.
When does demand for patella tendon knee strap peak?
Demand peaks in May; the busiest month runs 2.2× the quietest.
What does it cost to enter the patella tendon knee strap niche?
Listings span £4.31–£19.55; the average listing price is £10.56 (sweet spot $15–$100). The average incumbent carries 5,678 reviews — the moat a new listing must climb.