Master-Piece was built on a commitment to high quality and functional design, and their Lightning Flap Backpack is a testament to this. The main material is made of a high-density nylon twill which has a firm, durable texture and a soft lustre, resulting in a stylish yet practical bag. The bottom panels are constructed from CORDURA Ballistic® 1680d nylon which has been treated with a water repellency coating. With silver hardware, large main pockets and a drawstring closures, this bag has all the necessary parts to make it a firm everyday favourite.