I've been using this book sleeve for a few weeks now, and it's become my go-to accessory whenever I leave the house with a book. The 11 x 8.7 inch size is perfect - it fits my thick paperbacks comfortably, and I can even squeeze in two thinner books when I'm indecisive about what to read.
The fabric feels surprisingly durable - not that flimsy stretchy material some sleeves use. My books stay protected from bent pages and accidental spills in my bag. That said, don't expect tablet-level padding; this is clearly designed for books first.
What really won me over are the thoughtful details. The outer pocket perfectly holds my reading glasses and a pen (though receipts tend to migrate there too). The zipper gives me peace of mind - no more books tumbling out when I'm rushing through the airport.
The design options are adorable - I went with the kitty print which always sparks conversations at coffee shops. While some reviewers mentioned color discrepancies, mine matched the product images exactly.
It's not just for paperbacks either. While snug, it does accommodate smaller hardcovers. For beach trips or daily commutes, this sleeve keeps my precious books looking pristine while still being accessible enough for actual reading.