Our convertible backpack to tote is crafted from waxed canvas. It is perfect for your large project or as a bag for your day trip. The outer part of the tote is constructed from Halley Stevensons waxed cotton, making it water resistant. It is 15X15, with a zipper top closure, an extra large waxed canvas outside pocket and an inside pocket. It has a 5 inch wide bottom. The waxed canvas only gets softer with use! The outside pocket is constructed from a contrasting linen fabric. The inside is canvas. The tote can be carried by the extra long handles as a tote or as a backpack. The handles are woven. All of the hardware is brass.