Global Full Time 41" Medium Back Multi Tilter Chair Black Men's g string underwear, Men's Fashion, Bottoms, New Underwear on. The Global Full Time Medium Back Multi Tilter Chair features extra thick cushions, infinite position tilt lock, tilt tension adjustment, infinite position back and seat angle adjustment, including forward tilt, and many more to help the user to sit comfortably with support for long continous hours. Available in black, this unit is also compliant with the emissions guidelines set by the Greenguard Environmental Institute.