Muji Water repellency will gradually get lost during use. Do not leave wet items in the product for a long time as doing so may cause colour transfer. The equipment placed in this product will not be completely protected from scratches or damage due to impact. Please note that we shall not be held responsible in the event of any loss, damage, fault or theft of the main unit or any consequential data damage or disappearance. If any dust or sand gets into the PC storage pocket, it may cause scratches. Do not knock, drop or swing around, and make sure the pocket is closed when used. Contents may be damaged if dropped or subjected to other strong impact. Note that the PC can get damaged if too many other things are stored along with it in the pocket. Do not keep or use this product in a hot or very humid place or in direct sunlight as it can cause damage, discolouring or deformity of the product or breakdown of the equipment. Backpacks