Inclusion Criteria:  Able to read and understand the Subject Information and Informed Consent Form and provide meaningful informed consent Due to start using one of the following dressings: Sorbact® Compress, Sorbact® Gel Dressing and Sorbact® Ribbon Gauze Age ≥18 years Presence of hard-to-heal wound for ≥6 weeks with no significant wound area reduction for the last 4 weeks confirmed by investigator/study nurse  Exclusion Criteria:  Participating in another clinical investigation Known allergy or sensitivity to any components of the allocated investigational device Use of systemic or topical antibiotic for the past two weeks or planning to use while participating in investigation. Use of antimicrobial agent (e.g., silver- or iodine-containing dressings, or gels) during the last wo weeks Use of a dressing from the Sorbact® range during the last two weeks Subjects with any other condition that as judged by the investigator may make investigation procedures inappropriate