I THINK the density of the Mille pad is much higher. Of all my bike shorts/bibs, it is the only one that I have to squeeze the water out of by hand after a wash. I have a front-loader that does a good job spinning the water out of anything but the Asso Mille knickers. How did I discover this - after a night of hang-drying, I put them on and went for a ride. I was wondering why my butt was getting cold and wet till I realized the silly pad was still soaked.