update:Replacement unit received, timely delivered. All looks good and no stitching issues on the replacement. For a $20 sling, it's well made and measures up for my needs. So only time will tell how well zippers, stitching, etc. holds up. I'm not expecting miracles but if it lasts a year, it's well worth the $20.Given its very reasonable price, compared to others, it's actually a very nice sling pack. But as picture shows, the inner pocket elastic band on my bag was not stitched completely/properly and coming apart. Chalking that up to just one of those things missed. Returning for replacement b/c it is a nice sling pack and dimensions are what I'm looking for. After buying/returning several bags b/c it just wouldn't fit or not enough protection, this Vanlison pack was perfect fit for the 12" 2018 ipad pro (3rd gen). That inner pocket with the bad stitching fit the ipad perfectly, pretty snug. The ipad is pretty much the size of a letter-size paper, about 1/2 inch thick so if you're looking for that pocket to fit a really thick letter sized notebook, it won't do. The main compartment will fit a letter sized notebook probably up to 1.5" - 2" thick. I am returning for a replacement and hopefully with have the elastic strap fixed and update my review.