Deuter says about the UP Sydney
"Urban lifestyle meets sustainability: UP Sydney.
It has all the functionality you want in an urban pack but is produced in a resource-efficient way, so you can make your commute with a clear conscience. This is primarily because the UP Sydney is made entirely from recycled materials - 40.5x 0.5-litre PET bottles to be precise. The textile manufacturing process is carried out according to the stringent bluesign(R) standard. And secondly, the amount of water and crude oil used is significantly reduced.
The UP Sydney is designed to accommodate everything you need for a day at work, at uni or when you're just out and about. Clever compartment configuration and a lid opening with magnetic fastener mean items are quick and easy to access. Aluminium hooks on the lid provide added safety."