- Easy assembly
- Over Zipper well adaptable content
- Lots Of Space
- Protective against splash
Negative:
Judging from the good cycle paths some way on a forest trail, you're more concerned with the bag pick up off the ground than to drive.
Conclusion:
Very good for roads and dirt track driver, but in the field it is so that they occupied the ground set aside more.
Addendum:
Now have a little string made to seat post and bag and so with that thing even terrain is suitable. Would be nicer if it would give as a strap with Velcro to the bag.