| CPC A61F 13/49006 (2013.01) [A61F 13/15268 (2013.01); A61F 13/15577 (2013.01); A61F 13/537 (2013.01); A61F 2013/15878 (2013.01)] | 20 Claims |

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1. A reusable undergarment comprising:
a body fabric comprising a continuous waistband and two leg opening portions;
a gusset assembly comprising more than two layers, wherein the gusset assembly is positioned inside the undergarment and includes at least an absorbent layer, wicking layer, and water-resistant shield layer;
a first bi-fold, elastic trim sandwiching a first of the two leg opening portions of the body fabric and a first edge of the gusset assembly between a first side of the first bi-fold, elastic trim and a second side of the first bi-fold, elastic trim;
a second bi-fold, elastic trim sandwiching a second of the two leg opening portions of the body fabric, and a second edge of the gusset assembly, wherein the second edge of the gusset assembly is opposite the first edge of the gusset assembly between a first side of the second bi-fold, elastic trim and a second side of the second bi-fold, elastic trim;
a first non-wicking, hydrophobic thread sewn through the first bi-fold trim, all of the two or more layers of the gusset assembly, and the body fabric to form the sandwiching by the first bi-fold trim; and
a second non-wicking, hydrophobic thread sewn through the second bi-fold trim, all of the two or more layers of the gusset assembly to form the sandwiching by the second bi-fold trim, and the body fabric, wherein the first thread and the second thread are separate threads,
wherein the gusset assembly is permanently affixed in the undergarment to absorb liquids excreted by a wearer of the undergarment and is reusable after washing.
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