OrthoH2O – Waterproof Cast

OrthoH2O – Waterproof Cast Liner & Swim Cast Kits

OrthoH₂O is a professional-grade waterproof cast liner system that enables clinicians to create a true waterproof fiberglass cast — commonly called a swim cast. Unlike a removable cast cover, OrthoH₂O is integrated directly into the cast during application, allowing patients to shower, bathe, and swim throughout their recovery.

The liner is a thick, fishnet-style cylindrical stockinette that slips over the limb before fiberglass cast tape is applied. Water flows through the open mesh and drains freely from both ends — no trapped moisture, no skin breakdown.

What's in This Collection

• Waterproof Short Arm Cast Kit — Complete kit for a waterproof short arm (below-elbow) cast; includes OrthoH2O stockinette and fiberglass tape
• Waterproof Long Arm Cast Kit — Full-length arm kit for above-elbow waterproof casts
• Waterproof Short Leg Cast Kit — Below-knee swim cast kit; ideal for foot and ankle fractures
• Waterproof Long Leg Cast Kit — Above-knee waterproof cast kit for tibial and femoral fractures
• OrthoH2O Stockinette – 1 Full Roll (33 ft) — Bulk roll for high-volume clinics; a cost-effective alternative to AquaCast and Delta Dry

Why Clinicians Choose OrthoH2O

• One-piece slip-on design — faster application than multi-layer padding systems
• True waterproof performance — water flows through and drains freely; no pooling inside the cast
• Improved patient compliance — patients can maintain normal hygiene and activity levels
• Ideal for active patients — especially children in summer, swimmers, and athletes in recovery
• Compatible with standard fiberglass tape — no proprietary casting system required

OrthoH2O vs. AquaCast vs. Delta Dry

OrthoH₂O is a direct clinical alternative to AquaCast Liner and Delta Dry waterproof cast padding. All three use a mesh-style liner to allow water drainage, but OrthoH₂O is available in complete kits or bulk rolls, making it flexible for both individual patients and high-volume orthopedic practices.

For a full side-by-side comparison, see our guide: Waterproof Cast (Swim Cast) – How It Works, Pros, Cons & Care.

To browse all waterproof casting products including liners, tapes, and accessories, visit the Waterproof Cast Collection.

Frequently Asked Questions

Can a patient really swim with an OrthoH2O cast?

Yes — when applied correctly by a clinician, OrthoH2O creates a cast that allows full water exposure. The mesh liner lets water pass through and drain out, preventing moisture buildup that would otherwise soften a traditional cast.

Is OrthoH2O compatible with any fiberglass tape?

Yes. OrthoH2O stockinette works with standard fiberglass casting tape. No proprietary tape is required, though we recommend using a quality 3M or BSN fiberglass tape for best results.

How is OrthoH2O different from a waterproof cast cover?

A cast cover is a removable sleeve placed over an existing cast — it is not truly waterproof and must be removed before swimming. OrthoH2O is applied under the fiberglass during casting, making the cast itself waterproof from the inside out.

Who can apply an OrthoH2O waterproof cast?

OrthoH2O is a clinical product intended for application by orthopedic technicians, physicians, or trained casting staff. It is not a DIY product.