fabric description:600d polyester oxford material + polyester foam filling layer + soft fabric lining. Product performance:shockproof tender inner lining-excellent tender anti-static,can successfully absorb effect and decrease damage caused by unintentional collision and scratches. The double zipper at the pinnacle can slide easily and make it clean to use the laptop. The duration of the removable padded shoulder pad is 18cm, and the maximum duration of the shoulder strap is 112cm. While not needed,the top deal with also can be inserted into the pocket. You may use it as a shoulder bag,messenger bag and briefcase. The rear belt body is designed moderately and is easy to apply when visiting. Applicable scene:our unique ultrabook shoulder bag makes you particular. The wonderful patterns on the out of doors are elegant and unique. This chromebook protective bag could be very handy so that it will take your notebook with you. Suitable for commutes,business journeys,every day journeys,trekking etc. Accessory shape:both have a huge pocket,that can cover the handle or hold small add-ons,including pens,cell phones,chargers,mice,power resources,and mobile gadgets. Washing commands: hand wash is usually recommended,do no longer bleach.