The Thule Subterra Backpack 30L is a medium-sized backpack made of durable nylon material with a polyester trim. It features two dividers for organization, a zip closure, and padded features for added comfort. With a laptop compartment that fits a max 15" laptop, this backpack is perfect for outdoor activities like hiking and camping. The black color and sleek design make it suitable for both men and women, and it comes with a lifetime manufacturer warranty for added peace of mind. Overall, this Thule backpack is a reliable and practical choice for any adventure.