Logitech MX Vertical mouse packs pro features into ergonomic design
Logitech MX Vertical Review - RTINGS.com
Lift Vertical Ergonomic Mouse | Logitech
Amazon.com: Logitech MX Vertical Wireless Mouse – Advanced Ergonomic Design Reduces Muscle Strain, Control and Move Content Between 3 Windows and Apple Computers (Bluetooth or USB), Rechargeable, Graphite : Electronics
Logitech's vertical mouse could save your wrist | Engadget