Tena Complete Ultra briefs is an open all-in-one incontinence product with adjustable tabs for perfect fit, comfort and leakage protection equipped with DuoLock Core Technology and Ultra Back Panel Coverage. Advanced Core Technology and the right size brief help deliver optimal product performance. Extra large is for waists measuring 52 to 62 inches. - The two-core technology in the adult diaper has more absorption capacity for leakage security: The smaller core under big core acts as a reservoir to wick away and lock in moisture to help keep skin drier and keep the wearer more comfortable. The Ultra Back Panel provides enhanced coverage. EzFasten Fastening System. Meets NAFC (National Association for Continence) Premium requirements.