Yup if you wash your flightsuit you are going to have to redo your weathering every single time you wash it because even paints in fabric arnt permanent in a washing machine. I have used fabreeze on it and let it sit outside in the air for a day. Also plain vodka mist has worked for me as well...
Things are shaping up here. Like hvacdon said I would weather those boots some more. Weathering is scary but the boots are one thing you gotta just go all out on. His boots are the most weathered part of him and then it fades up the calves and shins into the jumpsuit so you want to start pretty...