Blue 12L Lightweight Running Hydration Pack A compact, lightweight hydration pack designed for running, hiking, cycling, and day trips. Made from waterresistant polyester, it combines a low 11.64 oz weight with organized storage and a 2L BPA hydration bladder to keep you hydrated and comfortable on long outings. Key benefits Ondemand hydration: Includes a 2L BPA bladder with a leakproof bite valve and a wide opening for easy filling and adding small ice cubes for cooler drinks. Light and lowprofile: 12L capacity with an overall weight of only 11.64 oz helps reduce fatigue while carrying essentials like a jacket, snacks, or a compact helmet. Stable, comfortable fit: Adjustable chest strap and ventilated mesh shoulder straps provide a secure, customized fit across different body types while minimizing bounce. Cool allday wear: Breathable mesh back panel improves airflow and comfort during extended use. Organized and versatile storage: Main compartment fits the 2L bladder plus clothing and small gear, with attachment points for trekking poles and a bottom pocket that includes a bicycle helmet net cover for easy helmet carry. Practical hydration routing: Double shoulder strap design offers two water outlets and includes a tube clip for convenient hose placement. Features Color: Blue Size: 12L capacity Material: Waterresistant polyester Pack dimensions: 16.1 x 11.4 x 3.9 inches Weight: 11.64 oz Hydration: 2L BPA bladder included; leakproof bite valve; wide mouth for ice Fit and comfort: Adjustable chest strap, ventilated mesh shoulder straps, breathable mesh back panel Carrying options: Attachment points for trekking poles, bottom pocket with helmet net cover Hydration routing: Double shoulder straps with two water outlets and tube clip Use scenarios Trail running: Carry water, a light jacket, and energy supplies with minimal bounce and improved ventilation on long runs. Cycling or bike touring: Securely store a compact helmet in the bottom pocket, clip the hydration tube to a shoulder strap, and reach fluids without stopping. Day hiking and road trips: Keep drinks cool with ice in the bladder and use attachment points for trekking poles or extra gear. This pack delivers practical hydration, comfortable airflow, and lightweight storage for a variety of outdoor activities while maintaining a secure, adjustable fit.