Net weight: Normal:0.6kg ; Upgrade-M:0.55kg ; Upgrade-L: 0.75kg ; Mini : 0.4kgColor:BlackMaterlal:OxfordLining: Polyester FabricFeature:Keep Everything in Order: allow you to store 16 inch laptop, Phone , power band, etc., with several separate small compartments inside, it can effectively keep your small items like makeup, tissue, keys and so on.Adjustable Shoulder Strap: you can adjust the shoulder strap as you like.Superior Material: it made of quality waterproof oxford fabric, you don't need to sware it get wet on the rain.