Wapsi – Thin Skin – Versatile, translucent material for wing cases, backs & bodies. Wapsi Thin Skin is a flexible, translucent sheet material perfect for creating wing cases, scud backs, nymph shells, and segmented bodies. Its thin, stretchable design allows it to wrap smoothly, adding depth, sheen, and lifelike segmentation to your patterns. Ideal for stoneflies, caddis, scuds, shrimp, and a wide range of nymphs, Thin Skin is easy to cut, shape, and tie in. Available in a wide selection of colors and finishes—including mottled and metallic—it gives tiers endless options for realistic and creative fly designs. Durable yet lightweight, Wapsi – Thin Skin is a must-have for any bench. Shop online or visit Drift Outfitters in Toronto for expert advice and fast shipping anywhere in Canada.