The Kubility BACKPACK KUWOW is suitable for all-day use. The design—from the inside to outside, from the interlayer structure to inside combinations— gives full consideration to indoors and outdoors daily use. It is equipped with Bluetooth Tracker and passcode lock, designed to prevent lost and theft, good for both business and leisure purposes. In addition to its scientific weight-carrying mechanism, it also utilizes the lightweight materials with waterproof fabric, including the innovative use of DuPont Kevlar bulletproof material as interlayer, which is flame retardant, anti-static, and anti cutting or tearing. KUWOW is your best friend!