Fiber Details: Au Ver a Soie®, Soie d'Alger is a stranded Spun silk with 7 plies, which are easily divided. Soft, lustrous and smooth, it is made from a spun silk called "strusas" which gives it unrivaled regularity for hand embroidery. It is easily divided. It has a warm luster and is easy to handle.ny appearance. The name "Alger" refers to a specialized domestic manufacturing process 632 colors Soie d'Alger is durable for canvas work. Does not pill. 5.7 yards Made in Switzerland Tips and Tricks: For interesting textures, try mixing one or two strands of Soie d'Alger with a strand of wool, cotton, or rayon thread. The prefix "S" indicates skin tones colors. The prefix "F" is for face colors. Soie d'Alger makes the most beautiful cording and tassels for needlework finishing Recommended Use: 18 mesh 3-4 ply 13 mesh All seven plies cover tent stitch on 13 mesh.. Colors displayed in photos may vary based on monitor settings, and changes introduced during manufacturing. Photos are provided as a reference and not a guarantee of color tone.