Okay ... I guess you could call me the "downer" here, but I would be careful with the White Murakami bag in the wintertime (I saw that you are in the Midwest which gets similar weather to here in the Northeast).
I took my White Murakami out one winter day, and wouldn't you know, it started snowing. Not that I was concerned about the snow, but then as I was walking back from the parking lot to my car, a snow plow came by and proceeded to spray the ground and ME with all the sand & dirt. There is a reason why L/V put documentation in their bags indicating that they can stain ... THEY DO! Needless to say, my bag looks like it had dirt dumped on it (even though I tried to clean it up using mild soap & water).
Long story short ... I would be careful ... you can ruin this bag on a bad winter day.