Lightweight and low profile pack offers unique features to help keep workers hydrated and safe. Made of durable, water-resistant ripstop polyester with vented shoulder straps and back for maximum breathability. Features (1) zippered compartment, multiple D-rings and daisy chain for gear storage, reflective accent for higher visibility, breakaway shoulder straps for added safety, and 100% anti-microbial bite valve with cover to protect against contaminants. Designed with DualCap bladder for easy water and ice filling. Capacity: 3 L (101 oz.) for 3.3 hours.