Environmental material: Made of canvas greige cloth, no bleaching and no dyeing. The black dot of fabric is cotton shell which proves that our fabric is nutural and pollution-free.
Concealed Shoulder straps: The shoulder straps can be put into the back mesh pocket when you want to hand held it.
Hand-held&Shoulder back:Designed with adjustable shoulder straps which can be concealed and a carry side handle for your choice, free to switch to your most comfortable way.
Lots of storage space and pockets:One laptop compartment holds laptop less than 15.6 inch as well as 15,14,13.3,11.6 inch.One main compartment for daily clothing,books or electronics accessories.The zipped front pocket for quick access essentials.
Warranty: Return without any reasons(within 60 days); Exchange within （24 months).If any problems, please feel free to contact us. We will give you the reasonable measure to solve your problem.