Product review (5 stars): Just what I needed and got us back in business!
Purchased "Whirlpool W10381562 Bellow" from Factory Parts outlet out of the MULTIPLE sellers listed on this item.  It has the part number on it, FSP logo and the holes for draining at the bottom are cut out just like the original so it appears to be factory.  It is the substituted part listed for my model and is slightly different than factory.  There is more "Lip" that tucks in between the barrel and front of the plastic drum than the original.

While installing I tried to put the outer lip on the plastic front housing first and had  a hard time.  It was MUCH easier to put the "Lip" I previously mentioned in between the barrel and front housing first then stretch it to slip around the outer lip on the plastic housing and install the retaining bands.

Mine actually had a VERY small tear on the rubber outside of where it mounts to the door seal are so its still watertight.  I would recommend thorough inspection prior to installation to make sure it is good.

I have seen people mention it that what they got was "Flimsy".  What I received is more flexible.  This is brand new rubber, it hasn't been weathered for years and hardened so I would expect that to be normal.