Mersilene polyester fiber suture with easy handling Mersilene by Ethicon. A synthetic, braided, non-absorbable suture. Mersilene is a suture with great handling and knot tying features. It is prepared from fibers of high molecular weight, long-chain, linear polyesters. Mersilene sutures provide precise, consistent suture tension. Mersilene is mainly dyed green for good visibility.