The white wedding dress has become popular in the last hundred years or so with America's influence in the Philippines. Before that, brides wore their best dress, in a festive color or even stylish black, to celebrate a wedding. Orange blossom bouquets and adornments were a must during the turn of the last century.
For men, the barong tagalog is the traditional Filipino formal wear. It is a cool, almost transparent, embroidered shirt, made from silky pina or jusi, two native ecru fabrics. It is worn untucked, over black pants, with a white t-shirt underneath. These days, a Filipino American groom might wear the conventional black tux, but Filipino male wedding guests will usually show up in their finest barongs.
source : Traditional Filipino Wedding Dress