When you combine tubular weave with silky softness you get "Ultra Silk," from Berroco. The ultimate in stitch definition, as you knit & crochet with "Ultra Silk," you'll appreciate its unique qualities of elasticity & stability. You'll especially enjoy its interesting construction on a delicate tube of woven silk & rayon enclosing a pliable core of airy nylon. Finely crafted in Italy of 40% rayon, 40% nylon & 20% silk.