From WikiPilipinas: The Hip 'n Free Philippine Encyclopedia
Vakul is a headgear used to protect the Ivatans from rain, wind and sun. Vakuls are used by women while its counterpart Talugong are worn by Ivatan men.
Vakuls are made out of Philippine Date Palm or Voyavoy leaves. The palm leaves are being dried under the sun, shredded into thin parts and woven to make a Vakul.
- "The Voyage to Save the Voyavoy." DLSU Newsletter. http://www.dlsu.edu.ph/offices/mco/publications/newsletter/volume35/no05/breakthru.asp (accessed on April 28, 2008).