Master-Piece was built on a commitment to high quality and functional design, and their HugSack shoulder bag is a testament to this. The fabric of the main body is woven from recycled polyester treated with a coating to aid water repellency. The sturdy fabric is designed to keep your valuables safe, with the general design being inspired by vintage outdoor backpacks. With a spacious boxy design and a plethora of useful pockets, this bag is sure to get a lot of use.