Our silicone patch is made to fit your fly storage needs wherever that may be. On the top are our silicone inserts with slits that grip and hold your flies in place, or you can stick your flies in and leave virtually no marks to take years of use. The backside of the patch has marine grade Velcro so that you can mount your patch where flies are needed and take them with you. Originally designed as a replacement for foam inserts in packs or fly fishing bag, our silicone patch works great in a boat, vehicle, or by your tying vise.