Introduction
Equipment Used, Roomy Interior
Clever Features
Backpack harness, Separate Raincover, Accessories Pouch 
In Use 
Internal Compartment
Zipper System
Top Handle
Stitching Issues, Conclusion

Zipper System 

I do not understand their decision of using zippers which lacks a metal tab for the main opening. This is a frequently used compartment that deserves a durable zipper system in place.

Instead, they have used a rubber zipper tag, attached to nylon string, that is attached to a loop, and then attached to the zipper. Using this system is cumbersome as it is hard for your fingers to get a good grip of the zipper when needed, and using the zipper tag alone means you are relying on the durability of the string and rubber zipper tag. The zipper in general, does not slide smoothly and is susceptible to getting stuck especially around curves.

From previous experience, zipper strings are not as durable as metal zipper tabs. Manfrotto should have included metal zipper tabs as well as the rubber zipper tags in their zippers, like in other backpacks such as the Blackwolf Cedar Breaks 65 litre backpack, as shown above.

The benefits of using the rubber zipper tags is that you could lock two tags together by inserting one over the other to prevent the main compartment from being opened. This makes unwanted access more difficult especially if you are travelling in areas prone to theft.

The zipper rails themselves are small with material lips both on top and underneath it and the zipper tends to get stuck as it travels down the rails. This may help with water resistance and protecting the inner contents from the zipper, but it adds to the issue of the zipper getting stuck as it travels. Maybe using a larger quality zipper system could help.

Whenever you use the zipper to open the bag, you must use some care if you want to open the bag smoothly. I can see with constant use that the nylon string or rubber zipper tags could eventually break, especially out in the field, where you may have limited time to be careful.