At day 4, I wore two sets outer and pants and the fabrics are from tenun. I'm in love with tenun fabrics, this one is the most popular and authentic fabrics from Indonesia. Indonesia have different type of tenun like example there are tenun jepara, tenun baduy, tenun lurik, tenun bali, etc. I suggest you to searching on google about the details of tenun. And by the way for you that live in Indonesia, if you want to search some of local product with affordable prices, good quality, and authentic from Indonesia and most of all are handmade like my outfit that I wore for day 4 during JFW, you can search on Qlapa.com. They sell clothing, bag, shoes, accessories, and many more 100% made in Indonesia.