Good backpack for charging phone, but zipper broke already

I researched backpacks for my son for high school extensively before settling on this one. A USB port for charging his phone was a top priority for me because he will be traveling out of town for high school sports and his phone does not hold a charge all that well. I love the backpack in theory, but the zipper on one of the pockets has already broken off less than 2 months since he started using it. For that reason, I am giving the bag 3 stars instead of 5. UPDATE: one of the compartments is now falling apart. 2 stars. Photos attached.

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