Pine Hollow Daypack Collegiate Navy. Weâre constantly testing our products in the worst conditions all around the world to make our products perform even better. Explore how we test, and share your toughest moments of testing here. The Pine Hollow Daypack also features expandable side pockets, and stow-away trekking pole loops. It also boasts an impressive 32.1L (1962 cubic inch) stow capacity. Patented Omni-Shield delivers protectio