These classic Trailmaker backpacks are ideal for rugged use, hiking, and carrying heavy books. The Trailmaker backpacks are made of a sturdy denier polyester fabric. In denier polyester, the polyester fibers are twisted much more than in normal polyester, making a stronger, more durable fabric, often used in suitcases. The Trailmaker backpacks are 16” x 12” x 5”. A padded back gives a more comfortable experience, and padded straps keep the weight from resting harshly on your shoulders. The Trailmaker backpacks are divided between a main pocket and a front pocket to help you separate your supplies. The Trailmaker backpacks aren’t going to keep you as organized as backpacks with many small pockets, but they are a quality option if you’re looking for reliability and a backpack that will survive years of use. These Trailmaker backpacks are available in black, navy, gray, and green.