Our favorite nw sporty shoulder bag is the perfect size, it holds A4 documents and is perfect for business or for everyday casual use.  It's very light, water-repellent cotton fabric has a silk matt coating that gets even better with time. 

Dimensions:
about 36 x 25 x 8.5 cm

• waterproof zipper section on backside
• padded tablet compartment (width about 29 cm)
• removable and adjustable shoulder strap, with removable shoulder pad
• mobile pouch
• insert pocket
• pen- and key holder