The Mammut Neon Light 12 in Graphite is a 12L backpack made of durable nylon material. With a sleek gray color and dimensions of 9.8" width, 18.8" height, and 7.8" depth, this unisex adults' backpack offers ample space for all your gear. The Mammut brand is known for its quality outdoor gear, and this backpack is no exception, providing reliable performance for all your adventures.