I took extra large zip lock bags and a small bottle of liquid washing detergent on our recent transatlantic. I washed everything from sweatshirts , bras ladies blouse and nylon shorts in them. It did take two days for the sweat shirt to dry but hanging it on the balcony chair with towel chips expedited We then put our undies, my gowns, tee shirts and his polo shirts in the laundry bag. every thing came back fine.