This is the beautiful Velluto Stretto velvet by Designers Guild. It comes in the Chalk colourway.
Its official description is: "An incredibly soft and rich pile velvet weave in a broad colour offer for a multitude of end uses. Velluto Stretto is 145cm wide, and also available wide width as Velluto. The glamour and subtle sheen of the velvet pile, combined with high durability and washability, makes this fabric ideal for many interior applications. Minimal marking, wonderful drape and handle with a luxurious finish."
Measurement: 142cmW x 105cmL
Composition: 100% Polyester