C&F Design – Universal System Foam Inserts – Organized, secure storage for trout flies. The C&F Design Universal System Foam Inserts are built to keep your trout flies organized and protected. Designed with consistent rows of 24 microslits, these inserts provide ample storage while preventing hackle from being crushed, even on vertically tied patterns. The simple, practical layout makes it easy to grasp flies for quick changes and to track which patterns need restocking after a day on the water. Compatible with C&F fly boxes, these foam inserts allow you to customize and expand your storage system to match your needs. Durable, functional, and efficient, they’re a must-have for anglers who value organization and reliability. Shop online or visit Drift Outfitters in Toronto for expert advice and fast shipping across Canada. ・5mm thickness (0.2inch)・Large-24slits 8rows (192-flies)・Medium-24slits 6rows (144-flies)