Air Support Back Panel: Body Mapping Technology provides targeted ventilation to keep your back cool on intense rides Crux Reservoir: 70oz capacity delivers 20 percent more water per sip with an ergonomic handle for easy refills Magnetic Tube Trap: Keeps your hydration tube secure and easily accessible while riding Removable Waist Strap: Adds extra stability when needed and can be removed for a lighter setup Helmet Carry: Conveniently stows and secures your helmet when not in use