This jacket is designed as a straight forward, lightweight, fully waterproof rain jacket so the hood is a fixed design and is not hideable or removable. The really nice feature of the hood is that it not only cinches around the face opening but has a draw string that cinches around your head so when you turn your head side to side the hood moves with you and you don't get lost in your hood.
Yes it is machine washable. Just follow the directions on the tag. Then when drying it, dry it alone in the dryer ON LOW HEAT and throw a few tennis balls in with it to loft the down back to full puffiness. Loud but effective!
Yes. The new S08 Momentum jackets do not have a zipper pull that flips over for zipping into the Mountain Light jacket. Other than that they are the same.
Yeah you can still zip it in. You'll have a little left over zipper in the mountain lite at the top but it shouldn't be a problem.
The Venture does not have a second inner zipper for zipping in a liner. It is designed as a lightweight rain jacket and forgoes the second zipper to save weight. You can still easily layer any fleece underneath it to warm things up when it is chilly out.