Tacky Fly Boxes are gaining in popularity for good reason. These well built fly boxes hold flies securely in silicone slits. Unlike slit foam fly boxes, Tacky Fly Boxes' silicone slits don't have memory. Without memory the silicone holds flies more securely and don't wear out. Tacky Fly Boxes are now available in 3 Sizes. The Day Pack Box is small enough to fit in a shirt pocket and hold's plenty of flies for a day's outing. The Original Tacky Box is a bit longer than the Day Pack Box. It hold more flies and is a good option for nymphs or dries. The Tacky Big Bug Box, as the name implies, is great for big bugs- hoppers, streamers, bonefish flies, etc.