SF Small Magnetic Slim Fly Box
- Number of Compartments: 6
- Water Resistance Level: Not Water Resistant
- Material Type: Plastic
- Maximum Weight Recommendation: 1 pound
Last refreshed Jul 5, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
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ASIN: B098JCHWLTModel: FB0403Category: Fishing Fly Boxes
Overview
The SF fly box is a slim, magnetic six-compartment case built from ABS plastic for storing small flies, tying beads and hooks. At 3.43 x 5 x 0.59 inches it is sized to slide into a shirt pocket or chest pack rather than a full tackle box.
This is a box for small patterns rather than a general fly box. It is not built for bulkier hackled dry flies or larger streamers.
- Six magnetic compartments in a 3.43 x 5 x 0.59 inch case
- ABS plastic construction with high-density foam insert
- Snap-tight lid for secure closure
- Slim profile designed for pocket or chest-pack carry
Who it's for
Fits anglers who fish small nymphs, midges, or dry flies and want a slim box for a shirt pocket or chest pack. Anglers who mainly fish larger flies or hackled dries need a foam-insert box instead.
Pros and cons
- Genuinely thin, fits a shirt or chest pack pocket
- Magnetic compartments hold flies through normal handling
- Clear lid makes contents easy to see without opening
- Latch can be stiff to open at first
- Not suited to larger or hackled dry flies
- Sized for size 14 flies and smaller
Specifications
| Brand | SF |
|---|---|
| Model | FB0403 |
| Dimensions & fit | |
| Maximum Weight Recommendation | 1 pound |
| Item Dimensions L x W x H | 0.6 × 5 × 3.4 inches |
| Construction & materials | |
| Material Type | Plastic |
| Color | Clear |
| Included components | |
| Unit Count | 1 |
| Other details | |
| Number of Compartments | 6 |
| Water Resistance Level | Not Water Resistant |
Closest rivals on specs
Dr.Fish Silicone Double Sided Fly Box X-Small- Maximum Weight Recommendation 1 vs 0.2 pounds (+400%)
fishpond Tacky Day Pack Fly Box- Maximum Weight Recommendation 1 vs 3 pounds (-67%)
Frequently asked questions
Is the SF fly box waterproof?
One reviewer described it as reasonably waterproof, though this has not been tested to a specific rating.
How many compartments does the SF FB0403 fly box have?
It has six magnetic compartments sized for small flies and tying materials.