Is yours actually soaking through? I don't have an Aircraft jacket in Ventile, but I have another jacket in Ventile. The material is meant to soak up water, but not actually allow water through. The membranes expand when it soaks up water, which allows it to be waterproof. It's a different kind of system than, say, Gore Tex, which is harder shell.It's also a bit more breathable, which is nice if you're active since your body's heat can easily dissipate.