Improved systems and processes for forward osmosis water purification or desalination are herein disclosed. The disposable absorbent article includes at least one serviceable indicium that facilitates an easy change by providing alignment of the article relative to an anatomical feature of the wearer or by externally highlighting one or more components of the article thereby indicating alignment and fit about the wearer’s lower torso. On subsequent warming or cooling the SMA shims expand to apply compressive forces to the portions of the structure, additional member or shoe with which they are in contact on their opposite sides. The boss being a generally annular member having an aperture extending between first and second ends wherein a cutting tool is secured within the aperture.