Forfar Outdoor Backpack Laptop Backpack Waterproof- Anti-theft, Anti-cut, Safe Bags WATERPROOF: High density waterproof nylon fabric, with super waterproof , prevent splashing. ANTI-WRINKLE: Made with sturdy and durable nylon fabric, achievegood scratch resistant. ANTI-SHEAR: Back strap can be prevented from shearing by scissors. ANTI-PILFERING: Security lock lock the backpack by password back strap on any stationary object can prevent the backpack to stolen. Anti-pilfering and anti-stolen. COMFORTABLE: Backpack straps and adjustable shoulder straps for carrying comfort. The perfect combination of backpack back design function, give you the most appropriate security services, anti-theft function, away from the theft.