The Ellevet Sciences Rolltop Rucksack is a stylish and practical waterproof backpack in black, featuring a roll top closure and adjustable straps for added comfort. This medium-sized backpack is perfect for travel, with a solid pattern and a sleek design suitable for both men and women. Made of polyester and polyurethane materials, the bag also includes a laptop sleeve for added protection. The timeless product line adds a touch of designer flair to this functional backpack.