HP H2W17UT Essential Carrying Case for 15.6" Notebook, for Chromebook; EliteBook 820 G1, 840 G1, 850 G1; ProBook 650 G1; ZBook 15 HP H2W17UT Essential Carrying Case for 15.6" Notebook, for Chromebook; EliteBook 820 G1, 840 G1, 850 G1; ProBook 650 G1; ZBook 15