Matta is committed to a sustainable lifestyle, and as such, their collections are composed of natural fibers - lightweight cotton, wools, and silks tailored to create dresses, kaftans, dupatta shawls, and tops for women seeking a well-traveled and laid back style. 100% cotton, block printed exterior, plain dyed lining, shell buttons, side pockets INDIGO care instructions - Natural Indigo is alive and will continue to transform and lightly bleed over time. This is part of the process that gives indigo-dyed products their natural beauty. Wash in cold water with mild detergent in dark colors and hang to dry in the shade.