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💦 Keep your cast dry and your lifestyle unstoppable!
BLOCCS ASA70 is a premium, 100% waterproof arm cast cover made from sustainable natural rubber, designed for adult arm casts and bandages. It offers a secure, watertight seal for worry-free swimming, showering, and bathing, combining medical-grade durability with comfort. Trusted by healthcare pros and crafted in the UK, this reusable sleeve ensures your cast stays dry while you stay active.

















| ASIN | B007UONML8 |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #24,492 in Health & Household ( See Top 100 in Health & Household ) #31 in Bath & Shower Cast & Wound Covers #2,265 in Sales & Deals |
| Brand | BLOCCS |
| Brand Name | BLOCCS |
| Closure Type | Pull On |
| Color | Blue |
| Customer Reviews | 4.4 out of 5 stars 7,256 Reviews |
| Global Trade Identification Number | 05060295740000 |
| Included Components | Bloccs Waterproof Cast Cover |
| Item Dimensions | 21.65 x 7.87 x 0.2 inches |
| Item Part Number | P6370 |
| Item Thickness | 0.5 Millimeters |
| Item Weight | 130 Grams |
| Manufacturer | Precision Dippings Manufacturing Ltd. |
| Material | Rubber |
| Model Name | ASA70 |
| Model Number | ASA70 |
| Number of Items | 1 |
| Part Number | p6370 |
| Product Care Instructions | Hand Wash Only |
| Size | One Size |
| Special Features | Reusable, Shower & bath, Soft flexible, Swimming, Waterproof |
| Specific Uses For Product | Fracture |
| Sport Type | Swimming |
| Target Use Body Part | Arm |
| Unit Count | 1.0 Count |
| Use for | Arm |
B**E
Excellent! Kept my cast dry in the shower
Expensive but worth it. Nice and thick so they don’t tear or crack. Stretch enough to form a nice seal to keep water out. This works far better keeping my cast dry than the plastic bags the nurses gave me. A+
N**A
Cast stayed dry
Worked well to keep my grand son’s casted arm dry while swimming. It’s quite bulky but didn’t interfere with him playing in the pool on our Florida trip.
M**S
Lifesaver for Summer with a Cast!
This was such a great find for my 12-year-old son, who had to wear a cast for 12 weeks over the summer. We spend a lot of time in the pool, and this product made all the difference. It kept his cast completely dry, was easy for him to put on and take off, and held up to daily swimming and splashing. Pros: • 100% kept water out • Comfortable and didn’t cut into his skin • Durable — survived a whole summer of use • Gave my son freedom to still enjoy the pool with his friends Cons: • Takes a little getting used to the tight seal at first, but that’s what makes it work! Bottom line: If your child (or you!) has a cast during pool season, this is absolutely worth it. It let my son enjoy summer like any other kid, and I’m so grateful we found it.
S**R
Works like a charm.
With a broken arm I needed some waterproof cover for my hand to almost elbow cast. I tried a clear plastic cover that came in a package of 3. I quickly discovered that while waterproof the were flimsy and I suspected that each one would not last long given that the cast will remain on for at least 6 weeks . I returned then in favor of this cover. This cover is very durable, quite waterproof, and relatively easy to get on and off. It was a slight bit of a struggle to get it over my hand/wrist area where the cast is a bit larger. After that it easily slid on and created a firm seal above the cast and just below the elbow. My only concern with the cover Is that the thumb portion needs to be a bit longer to fully accept the thumb. This might not be worth giving the cover 4 stars but I did want to call attention to what I thought, was for me, a shortcoming . As I previously stated the cover is great and I highly recommend it for any lower arm injury cast or dressing that needs to remain dry during bathing or showering
D**D
Works Great
Works great, recovering from wrist surgery and this is keeping the cast dry so I can shower each day, took it on vacation and was able to go in the pool each day / cast stayed dry
S**U
Great cast cover
Great quality. It doesn’t let the water in.
J**E
Did not last
I'm thinking it might be partially my fault, but this thing only lasted a week. It had a hole in it that then tore, did not notice it until my cast got soaked. Like I said, I think it was partially my fault so I'm giving it three stars instead of one.
A**R
Very big (& won't keep water out for many uses) but allows me to get in the pool!
I'm so glad Amazon sells this, b/c my elbow surgery with "cast" left me unable to do anything but walk and ride a stationary bike. My body needs to swim (to stretch my back, etc.) and do physical therapy (for my feet) in the pool. This (women's size) cover's tight grip on the upper arm didn't let any water in during the first 2 uses (when I was treading water with my legs in the deep pool or walking back & forth in the shallow pool), but a bit of moisture started entering on the 3rd & later uses (first just 5 drops, then 10, etc.) - perhaps b/c I have started "swimming" as best I can (about 40 lengths of the pool, gently). So I don't think these things last long. And I don't think it has a hole in it. But the grip of my upper arm is less strong now, so I guess I could try to have someone tie a lace or elastic band around it (& hope it doesn't move, which is a problem for the added band). I should also mention that it has a lot of "air" in it, so we have to deflate it (once we get it on) & then "tie it down" (so it doesn't flop all over while swimming laps). And the "thumb spot" is too far back (so you won't ever use that thumb spot). It won't last very long, but it was a worthwhile purchase!
D**.
Magnifique
Quelle bonne invention c'est vraiment super et étanche
L**O
Un Salvatore per l’Estate!
⭐⭐⭐⭐⭐ Bloccs Adulti - Copertura Impermeabile: Un Salvatore per l’Estate! Dopo la rottura del metacarpo ad agosto, ho avuto la necessità di trovare una soluzione che mi permettesse di proteggere il mio braccio mentre continuavo a godermi l’estate. La copertura impermeabile Bloccs si è rivelata un vero e proprio salvavita! Eccellente protezione: Questa copertura è progettata in modo impeccabile per tenere lontana l’acqua e proteggere il mio infortunio. Ho potuto fare il bagno senza preoccupazioni, e questo ha reso la mia estate molto più piacevole. Comfort e vestibilità: La copertura si adatta bene e non è scomoda da indossare. Anche dopo un utilizzo prolungato, non ho avvertito fastidi, il che è fondamentale per chi deve portarla per periodi più lunghi. Tenuta eccezionale: La tenuta è sorprendente! Sono riuscito a immergermi completamente in acqua senza alcun problema. Non ho mai avuto perdite, il che mi ha dato totale tranquillità. Facilità d’uso: Indossare e rimuovere la copertura è semplice e veloce. Anche se avevo qualche timore iniziale, il processo è stato molto più facile di quanto pensassi. Conclusione: Raccomando vivamente la copertura impermeabile Bloccs Adulti a chiunque abbia bisogno di proteggere una parte del corpo infortunata. È un prodotto di alta qualità che mi ha permesso di vivere l’estate al massimo, nonostante l’infortunio. Un ottimo investimento per chi desidera godere dell’acqua senza preoccupazioni!
C**N
Complètement étanche!
Notre fils s'est cassé le bras avant les vacances... mais cela lui a permis d'aller à la piscine!
P**A
Absolut vattentät
Den här är jättebra och släpper inte in en droppe vatten även om du simmar med den. Har räddat en solsemester. Använt både till ben och arm.
R**.
Perfect to protect medium to large forearm cast
The Bloccs Waterproof Arm Cast Cover, Adult Short Arm, worked really well to keep my cast, and the surgical incision underneath it, dry while I showered. I used the sleeve daily for a month, and it never leaked, didn't tear, and didn't stretch permanently out of shape. I tried three different sleeves before settling on the Bloccs model, and I have no regrets. The opening is small and flexible, but not so small that you can't comfortably insert your cast covered forearm arm into it even if the cast is considerably larger than your arm. Once pulled over your cast/arm, the opening forms around your above-elbow arm to form a smooth waterproof seal with your skin. I'm a 5- 8" 70-yr old guy with average size forearms, and my cast added about 2-in diameter to my forearm size. Pulling on the sleeve was painless and easy, took about 30 seconds, and once sealed prevented even direct spray from getting inside. Removing the sleeve was as simple as toweling off the exterior, then using my fingers to open the seal and roll the sleeve down over my cast. I left the sleeve laying flat on the tub edge between uses. The sleeve looks like a large elongated balloon, the rubber is thick and very tough, and there's lots of room inside once on for the hand to move around if needed. The "thumb" wasn't particularly useful and just flopped around, but it also wasn't a problem. The sleeve looks ridiculous when on, but it does the its job well, and who cares how you look when you're in the shower anyway?
Trustpilot
4 days ago
2 weeks ago