Top tube bag from Birzman with a window on the top which makes it possible to see your mobile phone through.

The window is 19x9 cm. large and compatible with touch screens.

It can be used with phones up to 6.8 "screen size.

In addition, inside the bag, you can have a powerbank with either wireless or wired charging, which charges your phone.

The bag can be set up on the top tube that is between 20-50mm in diameter.

Made of water-repellent fabric.