Inspired from pure nature and the desire to go retro yet with convenience provided by latest technology, the 'Elements U' (for USB) bag is well crafted with great finesse, material strength and a sense of balance of smartness & professionalism. Bag has inbuilt USB 2.0 charging port which allows user to simply keep his/her smart gadgets charged all the time. Simply keep a power bank inside the bag and connect it to the port internally. Now you can simply connect your Smartphone to the external port on the Elements Port bag. Now there is no need to carry powerbanks in your hand when you want to charge your devices. Elements U is made of Premium cotton canvas material with full grain PU leatherette finish for extra durability. The vintage patterns, shapes, colors and fine texture are chosen very carefully to give these bags a very unique look and a great functional ease. Stylish and casual enough to carry on campuses, to the library or on a shopping trip. This bag also provide convenient and safe storage space, functional convenience with versatile sections to carry and store 15.6 inch laptops, A4 sized files, wallets, key & chains, powerbanks, cables, etc. very neatly. Elements U is highly durable. The top handle and shoulder & strap are very sturdy yet comfortable to hold for long time. Quality of material ' canvas, inner linings, zippers and stitching is superior. The adjustable shoulder strap is made of heavy, cotton webbing and is detachable with heavy clips. The messenger bag interior is lined with soft nylon.