I'm on Sidi Kaos - two points tight Boa lace for the front part (I hate feeling it loose) and the good and old buckled serrated large strap.
They use a "pierced" material that stretched and laced with use for some colors combination, but there is also this more "continuous" and firm material.
Tried the Bont Vaypor but it simply doesn't fit my feet shape. Too large on front part, never feel it tight enough. Middle finger touching the front curve.. etc. Maybe with some heating/molding - didn't try.
