C & F Designs System Foam Inserts – Saltwater Foam Bonefish (SFGS-3505)
Purpose-built for small saltwater patterns like Crazy Charlies, shrimp, and other flats essentials, the C & F SFGS-3505 keeps your go-to flies secure, organized, and ready for quick changes when shots happen fast.
Featuring C & F’s Micro Slit Foam system, this box holds flies firmly without burying hooks deep into traditional foam—reducing wear and extending the life of both your flies and the insert. The angled slit design allows you to slightly elevate the eye of the hook, making it easy to store patterns with weed guards without putting stress on the mono or wire.
The Grand Slam series uses thick, durable foam (8mm on Medium and Large sizes) to provide added depth and secure hold.
| Feature | Detail |
|---|---|
| Product Model | SFGS-3505 |
| Design Type | Micro Slit Foam |
| Hook Eye Elevation | Yes, with angled slit design |
| Material Thickness (Medium/Large) | 8mm |
| Best For | Small saltwater patterns (e.g., Crazy Charlies, shrimp) |
FAQ
What types of flies are best suited for the SFGS-3505 insert?
The SFGS-3505 is ideal for small saltwater patterns such as Crazy Charlies, shrimp, and other flat patterns commonly used in flats fishing.
Does the insert protect the hook and reduce wear on the fly?
Yes, the Micro Slit Foam system holds flies firmly without burying hooks deeply, which reduces wear on both the fly and the insert.
Can I store patterns with weed guards in this insert?
Yes, the angled slit design allows slight elevation of the hook eye, making it easy to store patterns with weed guards without stressing the leader or wire.

Leonard Gill –
This insert works perfectly for my small saltwater flies. The micro slit design keeps the hook elevated, and I can easily access patterns without damaging them. The foam holds firmly and doesn’t compress over time. Great for quick changes during a fishing session.
Elizabeth Gill –
I’ve used this with Crazy Charlies and shrimp patterns. The 8mm foam provides enough depth to keep flies secure. The angled slit makes it easy to store weed guard patterns without putting strain on my line.
Karen Johnston –
Solid build and fits my small flies well. The hook elevation is a nice touch, especially when using weed guards. A little more depth would be better, but overall it’s reliable and easy to use.