Systagenix Tielle® LiquaLock® Packing Hydropolymer DressingSystagenix Tielle® contains LiquaLock® technology, which cleverly retains exudates while also letting moisture vapor pass through the dressing, helping to provide an optimal moist wound healing environment. As exudates is absorbed by the dressing, it is designed to expand and conform to the contours of the wound bed, which helps minimize exudates build-up and the chance of maceration.