Excellent product. Stabilised my knee
Description
OrthoH2O Waterproof Short Arm Cast Kit — True Swim Cast Material
Complete Waterproof Cast Material Kit | Fiberglass Cast Waterproof System | Infant to Adult Sizes
OrthoH2O is not a cast cover. It is the actual waterproof cast material used to build a waterproof cast from the ground up. This complete waterproof short arm cast kit includes a water-resistant tubular stockinette and fiberglass casting tape — everything your doctor or cast technician needs to apply a true swim cast for the wrist, hand, or forearm (also called a fiberglass waterproof cast system).
OrthoH2O is a hypoallergenic, thick synthetic waterproof cast stockinette manufactured from Aerosliver yarn — skin-irritation-free and water-repellent. Quick-Wick Technology allows exposure to wet conditions, and its circular-knitted fiber drains water effortlessly. OrthoH2O contains silver (Ag), an antimicrobial ion that helps prevent bacterial growth and infections. With OrthoH2O, patients can shower, bathe, and participate in water-related activities without covering their casts.
Why Choose OrthoH2O Waterproof Cast Material?
- True Waterproof Cast System — not a cover, not a sleeve. This is the actual waterproof cast material applied by your doctor.
- Reduced Skin Irritation & Odor — antimicrobial fabric allows fast drying to prevent skin irritation and unpleasant odor.
- Superior Comfort — soft, flexible thick stockinette acts as a protective layer between skin and fiberglass casting tape.
- Breathable Design — unique fabric blend allows skin to breathe beneath the hard cast.
- Swim Cast Ready — patients can shower, bathe, and swim. A hair dryer on low dries the cast in 30 minutes or less.
- Casting Tape Included — fiberglass casting tape is included in every OrthoH2O kit at no extra charge.
- Antimicrobial Silver (Ag) Technology — helps prevent bacterial growth inside the cast.
- Color Choice — choose your fiberglass cast tape color at checkout.
✅ Everything you need to make a waterproof short arm cast is included in this kit!
Product Overview Video
Application Videos — For Patients & Doctors' Offices
The stockinette is doubled up so it is the proper thickness — see the diagram below.
Make sure your doctor or cast technician watches our application video so they know how to apply your waterproof cast correctly!
How to Apply Your Waterproof Short Arm Cast
- OrthoH2O is a water-resistant tubular stockinette — slip onto the limb and double up for proper thickness.
- Provide your doctor with the video instructions above so they know how to properly apply your waterproof cast.
- Never use any other materials than what is provided with this kit.
- Promise your doctor you will be compliant in caring for your waterproof cast and drying it after each wet exposure.
- A hair dryer on a low setting can help the cast dry in 30 minutes or less.
Waterproof Short Arm Cast — Size Chart
Kit includes waterproof stockinette and casting tape. Do not use any other materials. Stockinette is doubled up for proper thickness. Stockinette comes in white only.
| Patient Size | Stockinette Width/Length | Cast Tape |
|---|---|---|
| Infant – 3 Yrs | 2″ × 12″ | 2 — 2" |
| Child 4–12 Yrs | 2″ × 18″ | 1 — 3" & 1 — 2" |
| Teen 13–19 Yrs | 2″ × 24″ | 1 — 3" & 2 — 2" |
| Female Adult | 2″ × 24″ | 1 — 3" & 2 — 2" |
| Male Adult | 3″ × 24″ | 1 — 3" & 2 — 2" |
Frequently Asked Questions
Can I shower, swim, or bathe with a waterproof short arm cast?
Yes. OrthoH2O is designed for full water exposure — showers, baths, pools, and ocean water. After each wet exposure, use a hair dryer on a low setting to dry the cast in 30 minutes or less. Always flush with clean water after salt water or chlorine exposure.
How long does a waterproof short arm cast take to dry after getting wet?
The outside of the cast will be dry to the touch in 30–60 minutes. The inside takes 12–24 hours to fully dry. Using a hair dryer on a low or cool setting will significantly speed up the drying process.
To clean: use gentle soap and water. For odor: soak the cast in a 5-gallon bucket or bathtub. Add 1 cup hydrogen peroxide and 1 cup rubbing alcohol to help kill bacteria. Soak for 5 minutes only, then rinse with clean water and dry thoroughly.
What is the difference between OrthoH2O, AquaCast, and Delta Dry?
OrthoH2O — easy one-piece design with more breathability; does not pool water at the wrist. Casting tape is included. AquaCast — familiar to many doctors but tends to bunch up under the cast and is more difficult to apply. Delta Dry — lightweight and fast-drying but tends to tear, slip, and slide under the cast.
Will my doctor apply the OrthoH2O waterproof cast for me?
It depends on the doctor. Ask your orthopedic provider and let them know you will be fully compliant with all care instructions. You can bring the kit to your appointment or have us ship it directly to their office. We are compiling a list of doctors who work with OrthoH2O — contact us if you find one.
What is included in the OrthoH2O Short Arm Cast Kit?
Every OrthoH2O Short Arm Cast Kit includes: tubular waterproof stockinette (sized for your patient size), fiberglass casting tape in your choice of color, and gloves. Everything needed to build a waterproof short arm cast is in the box — no additional materials required.
How fast does OrthoTape ship?
We ship same day by 2 PM EST from Ridgeland, SC. Upgrade your shipping at checkout. It is best to order 1–2 days before your doctor's appointment.
Authorized OrthoH2O dealer. FSA/HSA eligible — check with your plan administrator. HCPCS: A6531. This product should be applied by a trained medical professional or for educational training. Always consult a doctor before use. A waterproof cast still requires a drying period between wet exposures — body heat and a hair dryer on a low setting help evaporate remaining moisture. Never apply fiberglass cast tape directly to the skin. OrthoTape is not responsible for improper application.
Ships same day by 2 PM EST from Ridgeland, SC 29936.
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Some of the reviews shown are from related products the merchant grouped with this one.
J
The ortho tape company is amazing. I’ve been using them for several years and I won’t go anywhere else.Ortho H2O is an amazing product. It allows you to shower bathe swim when it’s very warm out. It’ll dry on its own. If it’s not too warm just use a hairdryer on low makes casting easy definitely my go to product. I prefer this to any of the other name brands again or ortho tape is the best company around.
K
My son (6 years old)had a long arm put on for 1 month and it was torture especially in the august California heat. When we found out he was getting a short arm after 4 weeks I ordered this in hopes it would help him being able to breath more in the cast, and not feel so overwhelmed.
It did! He even lets me wash his hand now without crying!! We don’t fully submerge it, but we do wash around the areas with ease.
It’s been amazing.
Site looked a little sketchy to me but I took the risk and glad I did. It was here in 4-5 days and having the camo Print has been nice, he gets lots of compliments.
K
Quite possible the easiest thing I’ve ever done! The waterproof cast is a game changer!
1
Worked out well for my son who’s going on vacation to Mexico. They will be swimming on a regular basis and the waterproof cast is a blessing.
A
Great alternative to wrapped waterproof casts! So much fast to apply
A
Great products!! Arrive in a timely manner. Will definitely order again in the future if needed.
A
👍
D
We loved it easy process u tube video really spot on
A
Such an awesome product! Who would think of being able to get a cast wet... Ortho Tape did!! Best invention ever!
K
It worked awesome just as long as you put it on and then you spray the water on it. It’s easy to apply. I had to wear mine for two months. It never started smelling. It’s easy to wash it dried really fast. This product is worth every penny.
A
The cast tape came quickly and was applied by a cast technician. It's been in water and no issues so far.
K
Quality product!
p
This cast protector is the best product in its field very waterproof. My wife’s cast has stayed dry the entire time she’s been in it.
C
This waterproof cast was exactly what my son needed when he broke his arm mid summer. He was able to enjoy himself at the beach and continue swimming. He was able to shower like normal as well. 10/10 recommend!
K
The best waterproof cast padding ever to be made I love this stuff so much!
J
Life saver in the eyes of a child. My son won’t miss out on the pool or the boat.
K
Waterproof Cast | Short Leg Cast Kit - OrthoH20
M
Amazing product. My extra athletic child was able to return the swimming. Dried quickly and she’s super comfortable
R
We are a busy Atlanta clinic and this is our go to waterproof padding. It is very quick and easy to apply and all of our patients have been so happy with their cast.
t
2 of the rolls did not work only 1 roll did do I do not feel it’s very stable
M
Makes the best waterproof cast
L
My son broke his thumb right before a family beach getaway. We were so glad to find this waterproof cast. He was able to play in the bay like normal, including swimming across. It took a few hours to dry completely, but it wasn’t uncomfortable while wet. This definitely made having a cast on at the end of Summer less of a bummer.
B
I bought this and took it to my doctor. It took some convincing but she agreed to use the liner. I had already had the regularly-lined cast for a week and it was already really smelly and itchy. Then I switched to this liner. I had the ortho-tape liner on for 4 weeks in the middle of summer during which I exercised every day (think SWEAT) but the liner didn't smell, was rarely itchy, and dried very quickly!
C
My 3 year old broke his arm and the cast they put on him was a nightmare. The first couple days wearing the hospital cast I knew there had to be something better. I did some searching and came across the waterproof cast. I ordered it and took it to his doctor and asked to put it on. At first they said “NO” but another doctor there heard what I wanted and she has been on the hospital for awhile now to order a waterproof cast and she was wanting to see how they did, so she replaced the old cast with the one I ordered. I can’t wait to show them how great it is. My son has be swimming, fishing ( which leads to getting muddy) and the cast has been awesome. No stressing about getting it wet or dirty. We can just rinse it off!!
B
I love the way that NEAL cast stockinette allows me to continue swimming during the very warm pre-Summer temperatures in Florida. I had my dual short leg walking casts (for stress fractures in the feet) made with this remarkable material. I can swim with no problems - I can't believe I'm still casted but in the pool. After exiting the pool, I sit next to the pool and let the water drain out of the casts, which takes about 45 minutes. The NEAL lining feels fully dry in about five hours after exiting the pool without the use of a shop vac or hair dryer to speed up the process, probably less time when not inside in air conditioning. In the application of the cast I was surprised to see the NEAL stockinette doesn't readily recover it's original shape if stretched wider than necessary. That small detail will be remembered in the future. Also, with knowing the leg hairs might get yanked out by the resin on the cast tape, I clipped all the leg/foot hairs up to the knee to avoid this issue.
N
My wife really wanted our daughter to have a water proof cast since she broke her arm beginning of summer. This was a great option and priced well. Daughter has not complained at all about the cast except for standard itching every once in a while. She actually just took a shower in it without issue. It does take some time to dry after. We did have problems with the first application of the cast as it didn't want to adhere correctly and was essentially falling apart. Customer service was fantastic and we received a replacement quickly. No problems with the second application so far. I would recommend considering the dry application method.
A
I ordered the adult large that comes with two rolls of 2” and one roll of 3”. One of the 2” rolls was defective (the doctor could not get it to stick). Fortunately, the other 2” and the 3” roll worked well so the arm was able to be casted.
B
I have had experience with other “waterproof” cast materials put on by my orthopedic doctor in the past. But nothing beats Orthoneal. Comfort, drying time and durability can’t be beat. I’ll definitely be ordering it again when needed.
B
I have had experience with other “waterproof” cast materials put on by my orthopedic doctor in the past. But nothing beats Orthoneal. Comfort, drying time and durability can’t be beat. I’ll definitely be ordering it again when needed.
B
I have had experience with other “waterproof” cast materials put on by my orthopedic doctor in the past. But nothing beats Orthoneal. Comfort, drying time and durability can’t be beat. I’ll definitely be ordering it again when needed.