Umpqua Feather Z-LON - Z-lon is a synthetic material that has many uses. Long and straight Z-lon can be used on spinner wings, sparkle dun shucks, caddis emerger cases and tails. Can be used as a replacement for antron. Multi Use Synthetic Material;Great For Wing Material And Emerger Cases;Can Be Used As An Antron Replacement - At Sportsman's Warehouse, we live for the thrill of the great outdoors. Whether you're hunting, fishing, camping, backpacking, or shooting, having the right gear is key to making every moment unforgettable. That's why we bring you only the highest quality, trusted brands-because your outdoor experiences deserve the best. From expert advice to quality gear and community events, Sportsman's Warehouse is more than a store-we're your partner on every journey. Come explore with us and experience the difference passion makes.