I really wanted to like this backpack, it really is good looking and safe.
The reason why I am giving only two stars is because it has already broken on me, the USB cable that goes in the battery pack became loose so I can't really use it, only after 2 weeks of use. I have posted a question about support without response from the company.
The other reason why I give it two stars, which I think is more important, is because of the poor airflow in the back. Due to the design and the material, the cushion that touches the back causes the back to sweat a lot, and I mean A LOT. Causing for any person to be uncomfortable while wearing it. Needless to say I won't be using this back pack on a daily basis since it is not something that can be ignored. So of you walk at least 10 minutes with it you are likely to get sweat on mild weather.
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