Is cast sock profitable to sell on Amazon United States?

The niche generates $98K/yr across 29 tracked products. 1 of 6 products launched in the last 360 days are still selling. 90-day search growth is -32.3%. Flapen's verdict: Skip it (49/100).

How competitive is the cast sock niche?

20 brands and 23 sellers compete. The top 5 products take 44% of clicks and top 5 brands hold 61% of demand.

When does demand for cast sock peak?

Demand peaks in Feb–Nov; the busiest month runs 2.6× the quietest.

What does it cost to enter the cast sock niche?

Listings span $7.08–$23.12; the average listing price is $14.32 (sweet spot $15–$100). The average incumbent carries 620 reviews — the moat a new listing must climb.

cast sock

Skip it

Soft demand (-32.3% this quarter) — this niche doesn't clear our bar today.

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Brand share

Good61%

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

Review moat

Good619.93

avg incumbent reviews — the moat a new listing must climb

Competition

Good44%

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

Avg price

Good$14.32

avg listing price — sweet spot $15–$100

Conversion

Good4.3%

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

Price range

Good$7.08–$23.12

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

Returns

Okay4.1%

return rate — above 5% kills the launch gate

Market size

Bad$98K

$98K/yr · 160K searches

Growth

Bad-32.3%

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

Signals No Dominant Brand Low Review Barrier

According to Flapen's Amazon United States niche tracking, cast sock is a $98K/yr Amazon United States market (160K searches/yr). The top 5 brands hold 61% of demand. Demand peaks in Feb–Nov. Verdict: Skip it — 49/100.

Data updated Jul 14, 2026 · scored weekly · How we score niches

cast sock market data

Units sold / yr: 8K–10K; avg 100–250/product
Revenue / yr: $115K–$143K; units × avg price
Conversion rate: 4.3%
Avg BSR: #82
Page quality: 0%
Prime: 100%
Sponsored: 93%
Out of stock: 0.8%
Avg brand age: 41 months
Avg seller age: 178 days

Competition & brand share

The top 5 products take 44% of clicks — established leaders, but buyers still shop beyond them.

Brands

20 falling

Sellers

Top-5 brand share

61%

Top 20: 100%

Top-5 click share

44%

Top 20: 89%

Open market

33%

GBM18%
Shyyween14%
OXDFK13%
Bulinlulu9%
Aisesine7%
Boao6%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -32.3% search growth over the last 90 days.

Peak months: Feb, Nov · busiest ÷ quietest = 2.6×

Open Trend

Top cast sock search terms

cast sock48K/yr -29.9%3.8% conv.
cast sock cover for foot27K/yr -30.1%4.5% conv.
cast socks15K/yr -36.1%2.3% conv.
cast toe cover10K/yr -51.9%3.3% conv.
cast sock cover6K/yr +7.9%2.4% conv.
cast sock toe cover7K/yr -19.4%1.7% conv.
foot cast sock7K/yr -24.9%3.8% conv.
socks for casted foot7K/yr -32.6%3.0% conv.
sock for casted foot8K/yr -58.7%4.2% conv.
leg cast cover sock5K/yr +0.2%1.6% conv.

All search terms

Top cast sock 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.

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

GBM - Cast Sock - Heavy-Duty Non-Slip Adjustable Closed Toe Cast Cover Fits Virtually Any Leg Ankle or Foot Cast (Pink)

GBM$9.864.4★159 rev

Shyyween 4 Pcs Leg Cast Cover Medium Short Cast Sock Cover Below the Knee Leg Sleeve for Foot Men Women Plaster Stocking Protective (Blue Red White Black)

Shyyween$21.834.5★111 rev

Aisesine Socks for Walking Boot Under Orthopedic Air Cam Walkers Medical Boot Cast Shoe Unisex Knee High Sock Liner Grey

Aisesine$14.044.4★117 rev

Cast Sock Cover for Foot Cast Cover for Foot Leg Cast Cover Adjustable Drawstring Foots Casts Cover for Men and Women (Black)

OXDFK$7.094.2★247 rev

Bulinlulu Extra Width Diabetic Socks for Men Women-2 Pairs Wide Edema Non Slip Cast Bariatric Hospital Lymphedema Socks with Grips 13-15 for Swollen Feet(2 Piars Black)

Bulinlulu$18.114.5★327 rev

Newest

by launch date

4PCS 14.17inch*9.84inch Cast Cover for Foot Cast Sock Cast Sock Cover for Foot Foot Cast Cover Cast Socks for Women Foot Cast Sock Adjustable Drawstring Foots Casts Covers 2Black 2Gray

Generic$14.3913 rev

3mo ago

3 Pcs Leg Cast Cover for Men & Women Below-the-Knee Cast Sock Sleeve Breathable Plaster Stocking Protective Sleeve for Keeping Casts Clean and Protected During Daily Wear (Black)

CEYOME$15.1818 rev

7mo ago

Shyyween 4 Pcs Leg Cast Cover Medium Short Cast Sock Cover Below the Knee Leg Sleeve for Foot Men Women Plaster Stocking Protective (Blue Red White Black)

Shyyween$21.83111 rev

8mo ago

Shyyween 4 Pcs Leg Cast Cover Medium Short Cast Sock Cover Below the Knee Leg Sleeve for Foot Men Women Plaster Stocking Protective (Black Dark Gray Wine Red Army Green)

Shyyween$22.66111 rev

10mo ago

OXDFK 2 PCS Cast Sock Cover for Foot Cast Cover for Foot Leg Cast Cover Adjustable Drawstring Foots Casts Cover for Men and Women (Black)

OXDFK$9.87247 rev

11mo ago

Common questions

Is cast sock profitable to sell on Amazon United States?: The niche generates $98K/yr across 29 tracked products. 1 of 6 products launched in the last 360 days are still selling. 90-day search growth is -32.3%. Flapen's verdict: Skip it (49/100).
How competitive is the cast sock niche?: 20 brands and 23 sellers compete. The top 5 products take 44% of clicks and top 5 brands hold 61% of demand.
When does demand for cast sock peak?: Demand peaks in Feb–Nov; the busiest month runs 2.6× the quietest.
What does it cost to enter the cast sock niche?: Listings span $7.08–$23.12; the average listing price is $14.32 (sweet spot $15–$100). The average incumbent carries 620 reviews — the moat a new listing must climb.