We offer for example Cliff's, Frödinflies', Loop's, Tacky's and Vision's fly boxes. Smallest nymph fly boxes fit easily inside the pocket and larger pike fly boxes are briefcase shaped for boat use. Slotted inside is always the best choice. The silicon is the most durable material and foam is another popular material and good choice as well. Many models are also waterproof. We also offer foam boards for those who want to build their own fly box.