This is in EUC, clean and fully functional. It says for women but of course anyone could use it including men or kids. It’s pretty adjustable maybe not the tiniest kid or the biggest adult but in between the two extremes I think could work. I think I bought it at REI but it is out of stock now. “The women's CamelBak Magic hydration pack sports a gender-specific design for excellent comfort, plus gear storage and a 70 fl. oz. reservoir for quick mountain biking sessions.” Women-specific design includes soft contact points, a narrow mesh shoulder harness and a slider sternum strap; hipbelt is removable Lightweight XV™ back panel offers excellent cross-ventilation to help keep your back cool 70 fl. oz. Antidote™ reservoir has its own, front-entry compartment for easy external filling Quick Link™ system lets you effortlessly add accessories such as a Fresh™ filter, insulated tube, tube director or flow meter (accessories sold separately) Big Bite™ valve is ergonomically positioned for easy drinking; valve securely shuts off water flow with an easy, quick turn Main compartment and front zippered pocket with internal organization store essentials; expandable overflow pocket holds extra gear Helmet attachment points make it easy to secure your helmet during transport Side compression straps let you cinch down loads for jostle-free carrying CamelBak Magic hydration pack has reflective detailing that increases your visibility in low light. As always bundle to save in my closet!