Osprey Poco Plus Pack Review 

Thanks for the review, it will help me decide which one to go for

I think the mirror is for emergency, to help drawing attention using reflection of the sun.

We just purchased one of these. Do you find it ridiculously difficult to fasten the red side clips? Even with the sidearms fully inserted into the side arm cuffs, I'm afraid I'm going to break the clips trying to force closure. My only complaint so far.