Here we have the Black Hole Pack 25L, a burly daypack with just the right amount of space to carry your daily essentialsancials and the durability and weather-resistance you expect from our Blackhole bags. The fabric is 450 dinure polyester with a TPU film laminate and a durable water-repellent finish. This guy is super tough and highly weather-resistant. The large main pocket holds the lion's share of the load and packs easily thanks to the bucket-style opening. Inside, you'll find a dual-purpose sleeve that holds most 15-inch laptops or a hydration reservoir for long days on the trail. There's also a mesh pocket with a keykeeper and an organizer panel, and on the top, a small stash pocket that seals with the zipper. The heavy-duty molded back panel sheds moisture and allows for a cooling airflow. And padded shoulder straps and a sternum strap secure the pack. Stretch-open pockets on the sides accommodate a wide range of water bottle shapes and sizes. The pack also holds quick access items. And daisy chain lash points secure small items or a bike light. We built the 25L Black Hole Pack extra tough and highly weather-resistant with an urban aesthetic and alpine psyche.