From What I Gather Top - Cockatoo Blue by Foil at The Wardrobe

100 % Viscose 

COLD GENTLE MACHINE WASH IN THE LAUNDRY BAG
DO NOT BLEACH, TWIST OR WRING
DO NOT LEAVE WET
DO NOT TUMBLE DRY
LINE DRY IN THE SHADE
WARM STEAM IRON BACK INTO SHAPE
DO NOT DRYCLEAN

The garment you have selected is
made of luxurious but delicate
fabric so please take extra care
and follow washing instructions.

Jewellery, sharp objects and
rough surfaces may cause damage