https://trc-images.nl/collection_images/hires/2019/2019.0813.JPG#\\TRC-SERVER\TRCSharedWork\TRC Database\collection%20photographs\2019.0800\2019.0813.JPG#
Sample of black (acrylic) blue dark green light green and white (bleached allo) checked material in a fine diamond twill.
The attached label states: 'Allos Acrylic (local market?).