TENA Complete Briefs feature patent-pending DuoLock Core Technology that has more retention capacity for leakage security for wearer comfort and dignity; plus, their small core under a big core construction acts as a reservoir to wick away and lock in moisture to help keep the wearer's skin drier and more comfortable. In addition, they have an EzFasten fastening system which helps provide a secure and comfortable fit as well as a wetness indicator to help caregivers determine when it is time to change them; there is no need to open the briefs to find out if they need changing.