1)rain cover is optional 2)under on bicycle frame,can be put mobile phone,camera,sock,key,foldable tools,cigarette and so on.

If you need any further information ,please leave  a message with the trade message or visit our companys web.

In addition :OEM orders are welcome ,we can produce colors ,materials, structure, accessory,dimension can be changed according to your requirement.

THANKS!

bicycle saddle bag