Daily commuter backpack to carry your stuff on bike-rack as a pannier-bag
It's big enough to get everything to take for a daily work and after it. Inside is a padded pocket for 13"MacBook (with velcro closing), and enough space to carry everything you need, when you go to work by bike, and after work you have any program in the city.
On the front you can find the connect system: It's a bike-rack hook, which is an Ortlieb product. This can fit on 12 mm and 16 mm diameter racks. You can hide it with a matte black flap and velcro closing. Under the fixing system, there is a stripe with slots. Here you can adjust the velcro-strap to attach it to your rack to avoid the bag flapping side of the bike.
The backside of the bag is a classic backpack: padded backside, and complete adjustable shoulder straps, with an adjustable chest strap. The backside and the shoulder straps are made from totally waterproof and water-repellent Cordura material. When you riding, you can deattach/unmount the bottom of the shoulder strap, and hide it to the velcro-closed side pockets. Inside the side pockets are D-rings to attach the unmounted shoulder straps.
On the bottom of the bag made of matte tarpaulin, witch keep totally dry the bag, in any weather, and it's easier to keep clean.
Materials: Cordura (outside), lightened velcro (inside), velcro, waterproof zipper with metal slider, hardened polyester straps, ITW side release buckles.
Closing with velcro and one buckle.
Sizes: 18/27 L, 30*15*40/60 cm
Price: 170 euro
Weight: 1450 gr
Handmade in Budapest