cloth description:600d polyester oxford material + polyester foam filling layer + tender fabric lining. Product performance:shockproof tender internal lining-super gentle anti-static,can efficaciously absorb effect and decrease damage resulting from unintentional collision and scratches. The double zipper at the pinnacle can slide smoothly and make it clean to use the laptop. The period of the detachable padded shoulder pad is 18cm, and the maximum length of the shoulder strap is 112cm. When 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 frame is designed fairly and is straightforward to apply while travelling. Applicable scene:our special ultrabook shoulder bag makes you unique. The outstanding patterns at the outdoor are fashionable and precise. This chromebook defensive bag may be very convenient with a purpose to take your pocket book with you. Suitable for commutes,enterprise trips,daily journeys,trekking and so forth. Accessory shape:both have a big pocket,that may hide the manage or maintain small accessories,which includes pens,mobile telephones,chargers,mice,power components,and cellular devices. Washing commands: hand wash is suggested,do no longer bleach.