---
title: "Cast Sock — $98K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/cast-sock"
last_updated: "2026-08-10T18:44:18.934Z"
locale: en
meta:
description: "Niche score 49/100 · $98K/yr market · 160K searches/yr · $14.32 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 49/100 · $98K/yr market · 160K searches/yr · $14.32 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Cast Sock — $98K/yr Amazon US Niche (2026) - Flapen"
---
# **cast sock**
**Skip it**
Soft demand (-32.3% this quarter) — this niche doesn't clear our bar today.
Market size 25Growth 9Conversion 52Competition 69Returns 37Price range 51Avg price 69Brand share 73Review moat 72Quality gap 76
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Good****61%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Good****619.93**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Good****44%**
top-5 click share — leaders hold, buyers still browse
**Avg price**
**Good****$14.32**
avg listing price — sweet spot $15–$100
**Conversion**
**Good****4.3%**
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**
**Okay****4.1%**
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**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
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 ~~](https://flapen.com/research/methodology)
## **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**
**23**
**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.
5K3KSpike '24Black Friday '24Spike '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Feb, Nov · busiest ÷ quietest = 2.6×
[**Open Trend **](https://flapen.com/research/us/health-household/cast-sock/trend)
## **Top cast sock search terms**
- **cast sock**48K/yr-29.9%3.8% conv. - **cast sock cover for foot**27K/yr-30.1%4.5% conv. - **cast socks**15K/yr-36.1%2.3% conv. - **cast toe cover**10K/yr-51.9%3.3% conv. - **cast sock cover**6K/yr+7.9%2.4% conv. - **cast sock toe cover**7K/yr-19.4%1.7% conv. - **foot cast sock**7K/yr-24.9%3.8% conv. - **socks for casted foot**7K/yr-32.6%3.0% conv. - **sock for casted foot**8K/yr-58.7%4.2% conv. - **leg cast cover sock**5K/yr+0.2%1.6% conv. [**All search terms **](https://flapen.com/research/us/health-household/cast-sock/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.
0%5%$5K10%$10K15%$15K20%$20K101001K10K 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**GBM - Cast Sock - Heavy-Duty Non-Slip Adjustable Closed Toe Cast Cover Fits Virtually Any Leg Ankle or Foot Cast (Pink)**GBM**$9.86**4.4★159 rev](https://www.amazon.com/dp/B0BB4JL7JM) [2**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**$21.83**4.5★111 rev](https://www.amazon.com/dp/B0FZC1YXKW) [3**Aisesine Socks for Walking Boot Under Orthopedic Air Cam Walkers Medical Boot Cast Shoe Unisex Knee High Sock Liner Grey**Aisesine**$14.04**4.4★117 rev](https://www.amazon.com/dp/B0FJS514L3) [4**Cast Sock Cover for Foot Cast Cover for Foot Leg Cast Cover Adjustable Drawstring Foots Casts Cover for Men and Women (Black)**OXDFK**$7.09**4.2★247 rev](https://www.amazon.com/dp/B0DK1TRCP7) [5**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**$18.11**4.5★327 rev](https://www.amazon.com/dp/B0BG87TH9L)
**~~View all top sellers →~~**
### **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**$14.39**13 rev3mo ago](https://www.amazon.com/dp/B0GVB82J1D) [**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**$15.18**18 rev7mo ago](https://www.amazon.com/dp/B0G3VFYHHD) [**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**$21.83**111 rev8mo ago](https://www.amazon.com/dp/B0FZC1YXKW) [**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**$22.66**111 rev10mo ago](https://www.amazon.com/dp/B0FPMBJYX4) [**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**$9.87**247 rev11mo ago](https://www.amazon.com/dp/B0FMRBHWFG)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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**$14.39**4.4★**▲ 279%**](https://www.amazon.com/dp/B0GVB82J1D) [**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**$21.83**4.5★**▲ 209%**](https://www.amazon.com/dp/B0FZC1YXKW) [**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**$18.11**4.5★**▲ 206%**](https://www.amazon.com/dp/B0BG87TH9L) [**Bulinlulu Extra Wide Diabetic Socks for Men & Women 4 Pairs Hospital Socks for Swollen Feet Lymphedema Edema Cast Bariatric 4 Black**Bulinlulu**$19.05**4.4★**▲ 173%**](https://www.amazon.com/dp/B09NTL7LWM) [**Aisesine Socks for Walking Boot Under Orthopedic Air Cam Walkers Medical Boot Cast Shoe Unisex Knee High Sock Liner Grey**Aisesine**$14.04**4.4★**▲ 162%**](https://www.amazon.com/dp/B0FJS514L3)
**~~View all trending →~~**
## **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.
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