Check the listing for details. Hi-Viz Water System ERGODYNE Camel Back Running Cycling Pack Only No Bladder EUC. Color: Green, Condition: Pre-owned, Made in China. Listed at 15.99 USD. Pre-owned Ergodyne Tenacious Work Gear high-visibility hydration backpack. Designed for safety and convenience, perfect for construction, outdoor work, biking, or hiking. • Brand: Ergodyne • Color: High visibility neon yellow with reflective strips • Features: Reflective safety accents for increased visibility • Adjustable shoulder straps and chest strap for secure fit • Zippered compartments for storage • Hydration reservoir compatible (reservoir not included ) • Durable construction for work or outdoor use Condition: Good used condition. Shows light signs of wear from normal use. Clean interior and fully functional zippers and straps (see photos for details). Great for workers, runners, cyclists, or anyone needing high visibility gear.