Systagenix TIELLE® Adhesive Hydropolymer Dressing 4-1/4" x 4-1/4", Non-adhesive, LiquaLock TechnologySystagenix TIELLE® Hydropolymer Dressing contains LiquaLock technology, which cleverly retains exudate while also letting moisture vapour pass through the dressing, helping to provide an optimal moist wound healing environment.It is a non-adhesive, cut-able hydropolymer dressing for those awkward to dress.The absorbent island gently expands as it takes up exudate and allows the wound to remain moist.Can be used for all levels of exudate.