https://www.amazon.com/Google-Nexus-Tablet-Sleeve-GLE10100/dp/B00EURJUD2/ref=sr_1_3?dchild=1&keywords=%22Nexus+7%22+%22sleeve%22+%22black%22&qid=1625403908&sr=8-3

EDIT: it's incorrectly listed as "leather." Not so, it's neoprene.

I use this for mine, fits snugly on all sides.

https://www.amazon.com/gp/product/B00EURJUD2/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1

It's a great case and fits the pocket perfectly! I put the charger brick and USB C cable in the little pouch in the front. Perfect size!

looks good.. I went with the nexus7 sleeve (https://www.amazon.com/Google-Nexus-Tablet-Sleeve-GLE10100/dp/B00EURJUD2) myself based on all the good reviews I've been reading, but I'm still patiently waiting for my GPDP to arrive to try it out :)

https://www.ebay.com/itm/NEW-Google-Sleeve-for-Nexus-7-Tablet-Black-in-Retail-Package-Free-Ship-/111941326038

Out of stock, but I think they're on Amazon as well.

Edit: I think this is it, on Amazon: https://www.amazon.com/Google-Nexus-Tablet-Sleeve-GLE10100/dp/B00EURJUD2/ref=sr_1_4?ie=UTF8&qid=1517002478&sr=8-4&keywords=Nexus+7+Tablet+Black+sleeve