No comments needed, instant purchase OK. I bought this about six months ago and used it for my weekly train commute, but I won't be using it anymore due to work circumstances, so I'm offering it to someone who can use it. It fits a laptop, is super lightweight, and has a YKK zipper. It's easy to use and durable. I've also included a photo showing how a size 2 envelope fits inside. There are no noticeable stains, but please understand that this is a used item. I will compress it for shipping. Workman BASIC Backpack | BBC01 Color: Black Zipper: YKK