Waterproof cast shower covers
Two reusable silicone-seal sleeves — one for an arm, one for a leg — named by AAOS and Cleveland Clinic in the same breath as a DIY plastic-wrap fallback. Neither is a required purchase. And for a child's cast specifically, a pediatric hospital's own page recommends against using one at all — read that before you buy.
Checked against three hospital sources and this site's own 68-code Medicare dataset — how we choose →
2 picks we checked
Asunby Waterproof Leg Cast Cover
$21.85 re-verified live 2026-08-29
A reusable silicone seal for a full leg cast or boot — fits an 11–24 inch circumference.
The listing's own title names foot, ankle, and knee surgery specifically -- a medical-grade silicone seal at the opening keeps the whole boot or cast dry through a normal shower, reusable rather than the single-use plastic-bag-and-tape approach Erlanger's own patient booklet also describes as an acceptable fallback.
Flaw: a seal only works if it's actually sized to the leg — measure the circumference at its widest point before ordering, not just the "adult" label.
See the Asunby Waterproof Leg Cast Cover on Amazon →
CureSquad Waterproof Full-Arm Cast Cover
$12.59 re-verified live 2026-08-29
The same silicone-seal design, sized for an arm — fits up to a 20-inch circumference, full-length for a shoulder-to-wrist cast.
A reusable silicone sleeve that seals around the upper arm so you can shower before your dressing is cleared to get wet -- fits arm circumferences up to 20 inches, full-length coverage for a shoulder incision, not just the wrist.
Flaw: same fit caveat as the leg version — measure before ordering.
See the CureSquad Waterproof Arm Cast Cover on Amazon →What the general-audience hospitals say
AAOS and Cleveland Clinic each name a DIY fallback and a commercial option in the same sentence — this is a convenience upgrade, not a required purchase, per both:
“Use 2 layers of plastic or purchase waterproof shields to keep your splint or cast dry while you shower or bathe... Even if the cast is covered, do not submerge it... or hold it under running water... A small pinhole in the cast cover can cause the injury to get soaked.”
— American Academy of Orthopaedic Surgeons, OrthoInfo, “Care of Casts and Splints”“Your provider will show you how to cover the cast in plastic wrap or special plastic guards while you're bathing. Don't submerge the cast in water.”
— Cleveland Clinic, “Casts: Types & Care”For a child's cast: a real disagreement
UCSF Benioff Children's Hospitals — a dedicated pediatric hospital — recommends against a cover entirely for a child:
“Your child should not bathe in a tub or take showers. Stick to sponge baths. Cast covers are not recommended as they can leak. If a cast or splint gets and stays wet, skin breakdown and infection can occur.”
— UCSF Benioff Children’s Hospitals, “Cast Care”This page doesn't resolve that disagreement for you — see the full discussion, including which position to weigh more heavily for a child versus an adult, on the showering-with-a-cast spoke.
Medicare coverage: no code exists
No HCPCS code exists for a waterproof cast/dressing shower cover — zero hits in this site's own 68-code coverage_status.json dataset.
A different situation from an item like a shower chair (HCPCS E0240), which has a code but pays $0 by rule under a statutory exclusion — this category was never assigned a billing code at all. IRS Publication 502's general medical-supplies language may cover it for FSA/HSA purposes, though this research pass did not run a per-item marketplace eligibility check for this specific product — see the coverage spoke for the full FSA/HSA discussion.
Source: data/coverage_status.json — CMS HCPCS Level II quarterly file + DMEPOS Fee Schedule, July 2026 (DME26-C)
Recall history
Zero hits in this site's own recall data for 'cast cover,' 'Asunby,' or 'CureSquad.'
This is an honest out-of-scope zero, not a verified-clean recall check — waterproof cast covers were never one of the 9 CPSC/openFDA search terms this site's recall pipeline used.
Source: data/recalls.json — CPSC SaferProducts.gov + openFDA Device Recall/Enforcement
Go deeper
We earn a commission if you buy through the links above (Amazon Associates). It doesn't change the price you pay, and it doesn't change which products we picked — see our methodology.
Sources
- American Academy of Orthopaedic Surgeons (AAOS), OrthoInfo, "Care of Casts and Splints" (POSNA-reviewed) — source of the waterproofing quote and the pinhole/submersion caution; fetched live 2026-07-30
- Cleveland Clinic, "Casts: Types & Care" — independent corroboration; last reviewed 08/11/2023, fetched live 2026-07-30
- UCSF Benioff Children’s Hospitals, "Cast Care" — source of the pediatric-specific caution against cast covers; fetched live 2026-07-30
- CMS HCPCS Level II quarterly file, July 2026 release + DMEPOS Fee Schedule (DME26-C) — basis for the "no HCPCS code exists" claim above — see data/coverage_status.json
- CPSC SaferProducts.gov + openFDA Device Recall/Enforcement — 9 search terms, none covering this product category — see data/recalls.json
- Amazon product listings, direct live fetch (scripts/verify_asin.py, curl + mobile Safari UA; scripts/price_audit_20260805.json) — stock and price re-verification for both picks, 2026-08-29