Smith & Nephew ACTICOAT FLEX dressings feature a nanocrystalline silver coating that kills a broad sprectrum of bacteria in as little as 30 minutes. ACTICOAT Flex allows exudate to transfer through the dressing. ACTICOAT Flex 3 can be worn up to 3 days while ACTICOAT Flex 7 can be worn up to 7 days. Both can be cut to size.