The Katapu is made of natural materials. It is woven from thickrattan strands that are split lengthways in the middle. It has a sturdy inner helmet that offers protection against sword blows. The helmet is often reinforced with other materials such as metal plates, large fish scales,pangolin scales, and the skins of bears, monkeys, and other animals.
The decorations of the helmets are often designed in the shape of a monster head. Materials used for decoration include wattle,poultry feathers, claws, beaks, skulls ofhornbills, human hair, hair of other living things, shells (including the Nassa shell), and the teeth ofbears andpanthers. Hornbill feathers can also be used a decorative status symbol for warriors who have already fought in war; the feathers can represent the number of enemies killed.
The edge of the helmet can be framed with metal strips or wrapped in redflannel.
Katapu are used not only to protect against wounds, but also to act martially on the battlefield.
^abStone, George Cameron (1999).Glossary of the Construction, Decoration and Use of Arms and Armor in All Countries and in All Times. Courier Corporation.ISBN9780486407265.
^Lewandowski, Elizabeth J. (2011).The Complete Costume Dictionary. Scarecrow Press.ISBN9780810877856.
^Crawley, Ernest (2019).Revival: Dress, Drinks and Drums (1931): Further Studies of Savages and Sex. Routledge.ISBN9781351344517.
^Albert G. van Zonneveld:Traditional weapons of the Indonesian archipelago. Zwartenkot Art Books, Leiden 2001,ISBN90-5450-004-2, S. 61.
George Cameron Stone:A Glossary of the Construction, Decoration and Use of Arms and Armor in All Countries and in All Times. With an Introduction by Donald J. LaRocca. Courier Dover Publications, Mineola NY 1999,ISBN0-486-40726-8, p. 341.