Hartmann Usa, Inc. Hartmann Usa Co-Lastic® Lf Cohesive Elastic Bandages. High quality, cohesive elastic wrap, versatile enough to use as a securing, protective compression and support bandage. Designed with both you and your patients in mind. It sticks securely to itself, but never to your patients' hair or skin. Provides even, controlled compression and readily conforms to every anatomical structure. It is water resistant, lightweight and air permeable. Hand-tears to desired length, remains securely in place and has a folded starting edge.