Silent Pocket SLNT Faraday Bag Smartphone Sleeve Weatherproof Nylon, Signal Blocking Device Shielding for iPhone, Galaxy, Most Phones - Black Nylon (Medium Plus)
Quick take
The Silent Pocket SLNT Faraday phone sleeve (Medium Plus) is a weather-repellent 400D nylon pouch built to place a large smartphone inside a signal-blocking (Faraday cage) enclosure. It’s a good fit for privacy-focused storage, travel, and moments when you want less wireless activity from your phone. The biggest buying caveat is sizing, especially if your phone lives in a thick protective case.
Pros and cons
Pros
- Weatherproof, 400D nylon sleeve designed for carry and storage (water repellent feature).
- SLNT signal-blocking Faraday cage approach, intended to reduce multiple wireless signals in the stored state.
- External non-shielded pocket with a patented magnetic closure for small items.
- Medium Plus sizing targets large phones like iPhone Pro Max class devices, with internal dimensions listed.
Cons
- Tight, form-fitting enclosure, thick cases may affect whether the phone fits comfortably.
- Blocking performance can depend on testing conditions, and real-world “how fast it blocks” can vary by setup.
- Not designed as a daily “leave it in the sleeve while using it” option, since access requires opening the pouch.
What buyers think
Buyer-review evidence for this specific sleeve is mixed but generally supports two themes: the product is viewed as well-made, and users report that it can block signals as intended when tested informally. Several reviews highlight the quality of construction and the closure design, with some users noting durability advantages compared with sleeves that require frequent folding. The clearest recurring limitation is sizing. Reviews mention that the Medium size can be tight when paired with thick cases, and another buyer notes that a Pro Max-class phone fits with a “barely” fit expectation. Overall, buyer-review evidence suggests it works for privacy-minded storage, but fit with protective cases is the main factor that determines satisfaction.
What this sleeve is for
This is a Faraday cage-style smartphone sleeve meant to protect the device when it is stored inside the bag. The goal is to reduce unwanted wireless activity from the phone and help limit exposure to signals and tracking-related channels while you keep the device closed up. It can be useful when you are traveling, managing privacy around meetings or events, or simply want a consistent “storage mode” for your phone.
Fit and size guidance (this is the deciding factor)
Medium Plus is intended for larger smartphones. Use the listed internal dimensions to check your device and case thickness. Reviews repeatedly point to a tight, form-fitting pouch style, which means you should plan around your current case size rather than only the phone model.
- Medium Plus internal dimensions: 6.7 x 4.4 x 1.4 in (as listed internally in your materials, shown as 16.89 x 11.5 cm).
- Listed compatibility examples: up to iPhone 16 Pro Max with a case and specific recent flagship models are mentioned in the product details.
If you use a heavily padded case (for example, thick rugged protection), test fit before expecting the sleeve to close easily. If it does not close smoothly, you may need to choose a different size option or avoid very bulky cases.
Weatherproof nylon and everyday usability
The sleeve is made with weather-repellent 400D nylon and is intended for carry “anywhere,” including variable weather or wet environments. In day-to-day use, the most important usability detail is how the closure behaves. Multiple buyers comment positively on the closure design and note that the pouch does not rely on a heavy fold-over routine, which can matter for long-term wear if you open and close it frequently.
The design also includes an external non-shielded pocket with a patented magnetic closure, so you can store small items separately from the shielded portion.
How SLNT signal blocking is positioned
The SLNT system is marketed as a 100% signal blocking Faraday cage approach, covering a broad range of signal types (including RFID, Wi‑Fi, Bluetooth, NFC, cellular, GPS, and radio-related channels) and also positioned as a way to reduce EMF exposure. For practical buying purposes, understand that real-world outcomes depend on your environment and what “signal presence” means in your testing situation. If your goal is privacy-focused storage, the intended use is to keep the phone sealed inside the sleeve rather than expecting control while using the phone with the pouch open.
Pros and cons recap
Best for
- People who want a discreet, weather-repellent sleeve for privacy-minded storage.
- Travelers and commuters who want a consistent way to put their phone into a shielded enclosure mode.
- Users with large phones whose case thickness is within the sleeve’s tight fit.
Who should avoid it
- Anyone using a very thick protective case that prevents smooth insertion and closure.
- Buyers expecting a roomy, “drop it in and forget it” sleeve style.
- Users who need full phone access while it remains sealed in the enclosure.
Is it worth it?
It can be worth the premium if you value a well-made Faraday sleeve for privacy-focused storage and you already know your phone and case will fit the Medium Plus enclosure comfortably. If you are unsure about case thickness, consider sizing confidence first, since the most common disappointment pattern is that the pouch can be tighter than expected. If your priority is simple smartphone carrying, a regular phone sleeve or pouch will usually be more cost-effective, but it will not offer the same Faraday cage style signal-blocking intent.
Price and availability
Pricing and availability can change. Check the live listing for the current cost and whether Medium Plus (black nylon) is available to ship to you.
FAQ
Does the Medium Plus sleeve fit large iPhone Pro Max models with cases?
Medium Plus is intended for large smartphones, and the product details reference Pro Max-class compatibility. However, multiple buyers note that fit can be tight with protective cases. If your case is bulky, you should confirm fit based on internal dimensions and closure behavior.
Will this block cellular, Wi‑Fi, Bluetooth, and GPS signals?
The SLNT system is designed as a Faraday cage style sleeve to reduce a wide range of wireless signals when the device is sealed inside. Results can vary based on environment and how you test, but the intended use is to keep the phone closed within the sleeve.
Is it weatherproof enough for wet conditions?
The sleeve uses weather-repellent 400D nylon and is positioned for travel and variable weather. It is best considered a weather-protective carry sleeve rather than a guarantee of underwater use.
What is the external pocket for?
The sleeve includes an external non-shielded pocket with a patented magnetic closure. This is intended for storing small items separate from the shielded portion of the pouch.
Why do some buyers mention “tight fit”?
This style of Faraday sleeve is designed to enclose the phone in a close manner so the shielding works when sealed. That can make it less forgiving for thick cases, which is why fit expectations matter.
How should I choose between sizes?
Start by matching your phone model and then account for case thickness. If you use rugged or heavily padded cases, you may need to move up a size option so the sleeve closes without forcing the closure.
Specifications
| Product Title | Silent Pocket SLNT Faraday Bag Smartphone Sleeve Weatherproof Nylon, Signal Blocking Device Shielding for iPhone, Galaxy, Most Phones - Privacy & Anti-Hacking (Black Nylon, Medium Plus) |
|---|---|
| Category | Cell Phones & Accessories > Cases, Holsters & Sleeves > Sleeves |
| Brand | Silent Pocket |
| Manufacturer | Silent Pocket |
| Model Name | Faraday Phone Sleeve |
| Model Number | Celular |
| Color | Black Nylon |
| Material | 400D Weatherproof Nylon |
| Item Weight | 3.36 ounces |
| Compatible Phone Models | Up to iPhone 16 Pro Max (with Otterbox case), Samsung Galaxy S23+, Google Pixel 8 Pro |
| Compatible Devices | Up to iPhone 16 Pro Max (with Otterbox case), Samsung Galaxy S23+, Google Pixel 8 Pro |
| Water Resistance Level | Water Repellent |
| Additional Features | Weatherproof |
| Screen Size | 4.7 |
| Is Autographed | No |
| Compatible Cellular Phone Models | Apple iPhone 14 Pro Max |
| Pattern | Solid |
| Theme | Modern |
| Form Factor | Pouch |
| Enclosure Material | 400D Weatherproof Nylon |
| Finish | Smooth |
| Denier | 400 |
| Item Dimensions | 5.8 x 0.4 x 9.3 inches |
| Number of Items | 1 |
| Set Name | COLOR_NAME/SIZE_NAME |
| UPC | 850002296761 |
| Mfr Part Number | SPS-MPLBN |
Available variants
Color
- Black Nylon
- Black Leather
Size
- Medium Plus
- Medium
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