Soft, rustic and delicious, BC Garn Soft Silk is 100% bourette silk with a gorgeous slubby finish and is gorgeous to knit and wear! Gorgeous for lace, this super yarn comes in an astounding 54 stunning shades, some solid and some handpainted - using all environmentally sound ...Soft, rustic and delicious, BC Garn Soft Silk is 100% bourette silk with a gorgeous slubby finish and is gorgeous to knit and wear! Gorgeous for lace, this super yarn comes in an astounding 54 stunning shades, some solid and some handpainted - using all environmentally sound dyeing processes. Bourette silk will give your garments the most gorgeous texture and drape - a really unusual, fabulous yarn to try!