TENA Ultra Thins Absorbent Pads now come in Moderate and Heavy for greater bladder protection. The Ultra Thins live up to their name measuring less than 1/3" thick. The super absorbent pads can hold up to 18 times its own weight in fluid so there is no need to worry about leaks. The Ultra Thins are flexible and contour to body movements for a natural fit. The Ultra Thins pads can be worn discreetly underneath clothing without detection.