Thai silk-one of my favorites subjects. In BKK don't forget the silks at the weekend market. Not exactly high quality, but I have used them on many things. You will also find painted silk, handwoven designs and some hilltribe. The JT outlet on Sukhumvit is great also and much lower price than the regular stores. In CM I really enjoyed the Shinawatra stores-much different than the ones in BKK. The one on Handicraft street has wonderful clothing with the silks, while the ones ( one is a factory outlet) on Huay Kaew has great fabrics. The area around Warorot Market has many cotton and silk fabric stores. If you are a quilter, stop in at Jolie Femme ( handicraft st) to see the silk quilts. By the way, I have been experimenting with washing the Thai silk, It softens it and the drape is great. I have even tried-with success-washing a painted silk.