Besides avoiding sharp objects, care for waders is pretty simple. I rinse mine with fresh water and let them dry in shade or partial sun after each use. Occasionally, I’ll also use a rag and mild dish soap to wipe them down if they start to get really dirty. This can allegedly help recover or retain breathability, but I haven’t really noticed a big difference. The key is to just rinse sand, dirt, and salt off because it helps them last longer. Make sure to rinse the feet, too. If they start to get dirty or stinky inside, I use disinfectant spray and/or a rag with dish soap, rinse with water, and let them dry inside out. Don’t put them away wet inside or leave them in direct hot sun.