Description TrustyTrunks are the ONLY truly leakproof swim diaper solution!  When put on properly, TrustyTrunks hold in both solids and liquids, . Worn over a regular cloth or disposable diaper or underwear, messes stay in and pool water stays out.  (See wearing instructions below.)   8 GREAT BENEFITS OF A LEAKPROOF SWIM DIAPER:     1.  Comfortable Fit     2.  Promote cleaner, safer pool water     3.  No urine leaks onto you     4.  Reusable     5.  Sand protection     6.  Do the outfit changing at home     7.  Promote potty training     8.  Meet double diapering requirements   1. Comfortable Fit Made from very elastic, non-allergenic, skin-safe silicone that is soft on your child's skin.