I use this protective sheath especially for my Samsung Galaxy Tab keep home and to protect against dust and damage. The shell is relatively thin and light, interior made of soft material, except for the rather tough inner edges, which should normally but get no contact with the tab. The opening is through the two zippers quite simple. The protective effect of the front and back is more medium-strong and therefore provides this cover, especially for home and the trasport in a padded (Notebook) backpack on. The Tab has quite a lot of "air" in the pocket and actually a tab should fit in in a silicone case. As a pre-Rezensient already wrote, this bag was originally designed for an e-book reader, but it fits almost perfectly with the Galaxy Tab.
Conclusion: For applications in which must be placed on maximum shock resistance value not quite recommendable.