---
title: "Cast Protectors — £130K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/cast-protectors"
last_updated: "2026-07-31T10:35:22.082Z"
locale: en
meta:
description: "Niche score 46/100 · £130K/yr market · 160K searches/yr · £7.69 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · £130K/yr market · 160K searches/yr · £7.69 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Cast Protectors — £130K/yr Amazon UK Niche (2026) - Flapen"
---
# **cast protectors**
**Skip it**
Prices mostly outside the sweet spot ($2.85–$11.55) — this niche doesn't clear our bar today.
Market size 29Growth 64Conversion 89Competition 27Returns 83Price range 0Avg price 21Brand share 44Review moat 23Quality gap 45
**Conversion**
**Great****10.6%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Great****1.6%**
return rate — above 5% kills the launch gate
**Growth**
**Good****+41.6%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****79%**
top-5 brand share — brands hold most of the demand
**Market size**
**Okay****£130K**
£130K/yr · 160K searches
**Competition**
**Okay****69%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Bad****7,301.47**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Bad****£7.69**
avg listing price — sweet spot $15–$100
**Price range**
**Bad****£2.85–£11.55**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, cast protectors is a £130K/yr Amazon United Kingdom market (160K searches/yr). The top 5 brands hold 79% of demand. Demand peaks in Jul. Verdict: Skip it — 46/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **cast protectors market data**
- **Units sold / yr**
- **15K–20K**
- avg 750–1,000/product
- **Revenue / yr**
- **£115K–£154K**
- units × avg price
- **Conversion rate**
- **10.6%**
- **Avg BSR**
- **#8**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **93%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **29 months**
- **Avg seller age**
- **191 days**
## **Competition & brand share**
The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**12 **▼falling
**Sellers**
**18**
**Top-5 brand share**
**79%**
Top 20: 100%
**Top-5 click share**
**69%**
Top 20: 100%
**Open market**
**15%**
- Mighty-X32% - Fasola19% - EuyiHlybt11% - CureSquad9% - Box Commerce8% - Atan6% - Open — no brand owns it (6 brands, 15%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +41.6% search growth over the last 90 days.
4K3KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jul · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/cast-protectors/trend)
## **Top cast protectors search terms**
- **cast cover waterproof**21K/yr+55.6%7.1% conv. - **waterproof cast cover arm**17K/yr+65.3%9.3% conv. - **waterproof arm cover for shower**19K/yr+23.3%8.3% conv. - **cast cover**12K/yr+44.1%3.2% conv. - **plaster cast waterproof cover arm**13K/yr+34.0%10.9% conv. - **arm cast cover for shower**11K/yr+23.7%12.2% conv. - **waterproof arm cast cover**8K/yr+48.6%8.0% conv. - **cast protector arm waterproof**6K/yr+46.9%10.7% conv. - **arm cast cover**6K/yr+53.1%2.8% conv. - **waterproof cast cover**6K/yr+59.2%4.4% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/cast-protectors/search-terms)
## **Top cast protectors 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%£13K20%£26K30%£39K40%£52K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 15 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**100% Waterproof Arm Cover for Shower - Tight Seal - 3pk Adult Reusable Cast Protectors - Half Arm Bag Sleeves for Wounds Care - After Surgery Plaster Cast Cover for Hand Wrist Elbow Forearm**Mighty-X**£8.17**4.4★44,937 rev](https://www.amazon.co.uk/dp/B078Q7WJSG) [2**Fasola Cast Cover Arm for Showering Reusable Cast Dressing and Bandage Protector Watertight Protection for Short Arm Elbow Wrist Hand FInger**Fasola**£7.52**4.6★4,817 rev](https://www.amazon.co.uk/dp/B0CXSR24SC) [3**CureSquad Waterproof Arm Cast Cover Reusable Plaster Cast Protector Soft Comfortable Sleeve for Shower & Swimming Keep Bandage Dry**CureSquad**£7.72**4.6★1,809 rev](https://www.amazon.co.uk/dp/B0CHFFJH5L) [4**Box Commerce Adult Arm Cast Protector for Showering Swimming - Comfortable Soft Silicone Waterproof Cover for Bandages Casts Wounds Burns - Reusable Waterproof Bag - 6 cm ring**Box Commerce**£6.32**4.5★1,468 rev](https://www.amazon.co.uk/dp/B0G1F1YL9G) [5**EuyiHlybt Cast Cover for Shower Arm Cast Protector Arm Waterproof Cast Cover Soft Comfortable Plaster Cast Waterproof Cover for Bandages Dressings Wound Care Supplies etc.**EuyiHlybt**£7.69**4.6★2,214 rev](https://www.amazon.co.uk/dp/B0DSL9WTP9)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Box Commerce Adult Arm Cast Protector for Showering Swimming - Comfortable Soft Silicone Waterproof Cover for Bandages Casts Wounds Burns - Reusable Waterproof Bag - 6 cm ring**Box Commerce**£6.32**1,468 rev8mo ago](https://www.amazon.co.uk/dp/B0G1F1YL9G) [**Waterproof Cast Cover Arm Reusable Silicone Adult Plaster Cast Waterproof Cover Arm for Shower Protect Wrist Elbow Wound Bandages Burns & Surgeries Comfortable & Easy to Use One Size Fits Most**Atan**£7.59**99 rev1y ago](https://www.amazon.co.uk/dp/B0FCMKV7ZZ) [**ANOMM Waterproof Arm Cast Cover for Shower Reusable Adult Arm Cover Soft & Comfortable Cast Protectors for Hand Wrist Elbow Watertight Seal Cast Bag for Bandages Dressings Wound Care Supplies**ANOMM**£5.95**519 rev1y ago](https://www.amazon.co.uk/dp/B0FC65GJVM) [**EuyiHlybt Plaster Cast Waterproof Cover Arm Soft Comfortable Cast Cover for Shower Arm Reusable Cast Protector Waterproof Cast Cover for Bandages and Dressings Tattoo Wound Care Supplies**EuyiHlybt**£7.79**639 rev1y ago](https://www.amazon.co.uk/dp/B0F3CWX3VS) [**EuyiHlybt Cast Cover for Shower Arm Cast Protector Arm Waterproof Cast Cover Soft Comfortable Plaster Cast Waterproof Cover for Bandages Dressings Wound Care Supplies etc.**EuyiHlybt**£7.69**2,214 rev1y ago](https://www.amazon.co.uk/dp/B0DSL9WTP9)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**100% Waterproof Arm Cover for Shower - Tight Seal - 2pk Adult Reusable Cast Protectors - Full Arm Bag Sleeves for Wounds Care - After Surgery Plaster Cast Cover for Hand Wrist Elbow Forearm**Mighty-X**£10.38**4.4★**▲ 83%**](https://www.amazon.co.uk/dp/B08J3ZRTLQ) [**100% Waterproof Arm Cover for Shower - Tight Seal - 3pk Adult Reusable Cast Protectors - Half Arm Bag Sleeves for Wounds Care - After Surgery Plaster Cast Cover for Hand Wrist Elbow Forearm**Mighty-X**£8.17**4.4★**▲ 83%**](https://www.amazon.co.uk/dp/B078Q7WJSG) [**Box Commerce Adult Arm Cast Protector for Showering Swimming - Comfortable Soft Silicone Waterproof Cover for Bandages Casts Wounds Burns - Reusable Waterproof Bag - 6 cm ring**Box Commerce**£6.32**4.5★**▲ 68%**](https://www.amazon.co.uk/dp/B0G1F1YL9G) [**ACAST Waterproof Arm Cast Cover For Shower - Easy To Use Reusable Waterproof Protector For Hand Finger Wrist Wounds Plaster Arm Dressing Protector - Free E-book Included**ACAST**£11.55**4.4★**▲ 29%**](https://www.amazon.co.uk/dp/B0B5GRXZPN) [**Fasola Cast Cover Arm for Showering Reusable Cast Dressing and Bandage Protector Watertight Protection for Short Arm Elbow Wrist Hand FInger**Fasola**£7.52**4.6★**▲ 27%**](https://www.amazon.co.uk/dp/B0CXSR24SC)
**~~View all trending →~~**
## **What buyers say about cast protectors**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**20%
*“well made item”*
**Water Resistance**19%
*“Brilliantly waterproof”*
**Advertised Vs Actual Product**12%
*“Really worked as promised”*
**Size-Overall**10%
*“it fits all sizes”*
**Ease Of Use**8%
*“Easy to use”*
**Value For Money**7%
*“Good value for money”*
**Efficiency**5%
*“Does work”*
**Leak-Proof**4%
*“did not leak”*
**Strength**2%
*“Robust construction”*
**Comfort-Overall**1%
*“very comfortable”*
### **What buyers complain about **
**Size-Overall**29%
*“Too narrow”*
**Ease Of Use**14%
*“A: very hard to put on”*
**Water Resistance**5%
*“Opening very tight making it watertight”*
**Durability**4%
*“Mg sleeve split with in first week”*
**Leak-Proof**4%
*“Just leaked”*
**Functionality-Overall**2%
*“Doesnt work”*
**Comfort-Overall**2%
*“the silicon cuff is tight and very uncomfortable”*
**Pressure**1%
*“Its too much pressure to get my short arm into waterproof sleeve”*
**Quality-Overall**1%
*“They look cheap”*
**Advertised Vs Actual Product**1%
*“This is a very false description I would think that you could use it for a broken leg as it is massive making it totally useless”*
### **Top return reasons **
**Size-Overall**63%
**Water Resistance**5%
**Leak-Proof**5%
**Durability**4%
**Ease Of Use**4%
**Functionality-Overall**4%
**Advertised Vs Actual Product**3%
**Quality-Overall**2%
**Stretchability/Expandability/Elasticity**2%
**Defective Material/Parts**2%
## **Common questions**
- **Is cast protectors profitable to sell on Amazon United Kingdom?**
- The niche generates £130K/yr across 15 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +41.6%. Flapen's verdict: Skip it (46/100).
- **How competitive is the cast protectors niche?**
- 12 brands and 18 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 79% of demand.
- **What do buyers complain about in cast protectors?**
- Top complaints mined from reviews: Size-Overall, Ease Of Use, Water Resistance. The return rate is 1.6%.
- **When does demand for cast protectors peak?**
- Demand peaks in Jul; the busiest month runs 1.7× the quietest.
- **What does it cost to enter the cast protectors niche?**
- Listings span £2.85–£11.55; the average listing price is £7.69 (sweet spot $15–$100). The average incumbent carries 7,301 reviews — the moat a new listing must climb.
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