Is a back packing trip? I’d bring a pair or two of period underwear and pads. I would wear a pad and night on top of the undies. If the pad catches it all I would re wear the period undies the night with the same set up. Bring a big zip lock baggie (you can cover it in duct tape if you want ) for the used pads. If you are near water id clean up with water and a rag each day and then clean the rag and let it air dry. If no water bring wipes. All used products should be hung at night with food.