Zephyr FliCon Fly Box, Silicon Fly BoxZephyr FliCon Fly Box, Silicon Fly Box Description With a crystal clear, durable polycarbonate lid, this waterproof fly box fits in a vest or jacket pocket and has a long lasting, self healing silicone insert. Our silicone fly boxes feature an easy new guide system, allowing flies to be more easily inserted and removed with out sacrificing a secure hold. The silicone is molded in one process with one die, increasing its durability and life over