A very common nonabsorbable suture offered by us is the Silkus – Black Braided Silk Suture that is coated with silicon to allow easy passage through tissue, limit absorption and increase ductility. This type of suture has great knot pull strength and needle swage strength greater than USP limits. The range is packed using Tyvek paper for extra security. It is dyed black for better visibility. Although Silkus is classified as a non-absorbable suture, it loses most of its tensile strength in one year.