Enough extra space to fit my Kindle Fire 10 in it (including the bag which is not bulky, for reference: https://www.amazon.com/gp / product/B0779HHXQR/ref=oh_aui_search_detailpage?ie=UTF8&psc=1) along with some spare batteries for the keyboard if you want and a USB cable to charge your tablet. However, there's not enough room for the wall charger that comes with the Kindle Fire 10, so keep that in mind (something with a smaller design will certainly work).
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