WATERFLY RFID Crossbody Sling Backpack
- Storage Volume: 6.3 quarts
- size: Small
- Strap Type: Shoulder Strap
- Item Weight: 0.6 pounds
Last refreshed Sep 9, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A compact, adjustable sling bag with RFID protection built in, sized for daily carry rather than serious hiking loads.
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ASIN: B0F4WQWZ3JCategory: Cross-Body Sling Bags
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Overview
This is a crossbody sling bag with an RFID-blocking hidden pocket, sized about 7 x 3.5 x 15 inches, built for carrying a tablet, phone and small daily items on one shoulder strap.
The strap has three D-rings so it can be worn on either shoulder, and a separate small pouch on the strap itself holds a phone up to about 7 inches. It is described as water resistant rather than waterproof, so it is meant for light weather, not submersion or heavy rain.
- 7 x 3.5 x 15 inch sling bag, 0.6 lb
- RFID-blocking hidden pocket
- Adjustable reversible shoulder strap, 31 to 39.5 inches
- Side mesh pocket fits a 2.4 inch diameter bottle
Who it's for
Fits someone who wants a light one-shoulder bag for a tablet, phone and small essentials on day trips, hiking or commuting. Not sized for a laptop or overnight gear.
Pros and cons
- RFID-blocking pocket for cards
- Strap switches between left and right shoulder via D-rings
- Side mesh pocket fits a standard water bottle
- Water resistant only, not waterproof
- Not sized for a laptop
Performance notes
The RFID-blocking hidden pocket shields card chips from electronic skimming without needing a battery or activation, and the adjustable strap connects to either of two D-rings so it switches between left and right shoulder wear. A side mesh pocket sized for a 2.4 inch diameter bottle handles drinks separately from the main compartments.
Specifications
| Brand | WATERFLY |
|---|---|
| Dimensions & fit | |
| size | Small |
| Item Weight | 0.6 pounds |
| Apparel Fabric Weight Class | Lightweight |
| Fit to Size Sentiment | Neutral |
| Sleeve Length Description | Sleeveless |
| Item Dimensions D x W x H | 3.5 × 7 × 15 inches |
| Compatible Device Size Maximum | 11 inches |
| Capacity & performance | |
| Storage Volume | 6.3 quarts |
| Age Range Description | Adult |
| Construction & materials | |
| Outer Material | Polyester |
| Material Type | Polyester |
| Fabric Type | 100 % Polyester |
| Color | Rfid-Black |
| Shell Type | Soft Shell |
| Included components | |
| Backpack Harness Type | Shoulder Harness |
| Unit Count | 1 |
| Backpack Design | Daypack Backpack |
| Other details | |
| Strap Type | Shoulder Strap |
| Water Resistance Level | Water Resistant |
| Number of Compartments | 5 |
| Number Of Pockets | 8 |
| Product Style | Modern |
| Lining Description | Polyester |
| School Type | College/University |
| Apparel Closure Type | Zipper |
| Sport Type | Hiking |
| Number of Items | 1 |
| Import Designation | Imported |
| Pattern | Solid |
| Product Care Instructions | Hand Wash Only |
| Other Special Features of the Product | Cell Phone Holder, RFID Blocking |
Closest rivals on specs
Pritent Sling Backpack with Convertible Shoulder Strap- Item Weight 0.6 vs 0.53 pounds (+13%)
G4Free Tactical Sling Backpack- Item Weight 0.6 vs 0.88 pounds (-32%)
- Storage Volume 6.3 vs 7.4 quarts (-15%)
Frequently asked questions
Does the Waterfly sling bag fit a tablet?
Yes, the front compartment is sized to hold an iPad mini along with smaller items.
Can it be worn on either shoulder?
Yes, the strap connects to either of two D-rings so it switches between left and right shoulder wear.
Is the Waterfly sling bag waterproof?
It is described as water resistant, suited to light weather rather than heavy rain or submersion.