Rains Bag This is a bag from Rains, a famous Danish waterproof fashion brand. I used it frequently for a while, so it has some minor stains, but there are no functional issues whatsoever when using it. I'm open to price negotiations within a reasonable range! There's a button inside, and if you unfasten it, you can store a larger capacity. A4 files fit, of course. A PC of a similar size will also fit. It also has an inner pocket. The shoulder strap length is adjustable. For reference: Height: 36cm Width: 34cm Depth: 11cm It's convenient for outings and activities in rainy weather. Thank you for your interest!