Pack it for a day, or slightly longer, when your trail time could turn into an overnight. This 28-liter pack features a highly breathable back panel and shoulder straps, a front-loading stuff pocket, and a lid that automatically closes when you pull the drawstring. Made of rugged 100% recycled nylon. Comfortable Shoulder Straps Highly breathable Regulator® airmesh shoulder straps and hip belt Back Panel Engineered for All-Day Wear Suspended mesh back-panel construction provides excellent airflow and prevents moisture buildup for all-day comfort Versatile Hip Belt On-the-go accessible hip belt and side pockets secure small items while on the move Hydration Compatible Hydration compatible Handy Cover Rain cover included; pack volume is 28 liters Zippered Pockets Lid and internal security pockets zip to keep items safe