Like the other dude said, 3M isn't crazy expensive. The water resistant corduroy from last season is probably more expensive to produce than 3M layer so at this point i'm just assuming it's gonna be 300 or under. The 548 just sounded like bullshit right from the start but we shall see.
Lining up in London tomorrow morning so ill know UK price before US drop. Will be able roughly work out price in dollars based off that, assuming legit price hasn't leaked by then.