When I originally tried it years ago it seemed to work great, but over the years it is like they've diluted the formula and it is no longer effective.

I recently purchased this for my Nikon D3100. I'm able to easily fit the body, stock lens, charger, and another Sigma 300mm lens in the insert with room to spare. The inserts fits incredibly well in a Commute messenger bag, which allows you to have extra places for storage. It's a shame this bag doesn't have separate hooks for a shoulder strap because it could be used as a standalone bag for quick excursions.