A formal wear must-have is a barong Tagalog. This piece is made with double organza with biege embrodiery in the front. It is perfect for any formal event or you can even dress it down with jeans.
“Though "barong tagalog" literally translates to "Tagalog outfit", the "tagalog" in the name does not mean that it was a form of dress exclusive to the Tagalog people, as opposed to other Philippine ethnic groups. Barong tagalog (and baro't saya) were worn universally among Christianized lowlanders throughout the Philippines in the Spanish colonial period. Rather, the name was coined to distinguish the dress as native (hence "tagalog", i.e. Indio), as opposed to the styles of dress of Europeans and other foreign cultures.” - Wikipedia