Tech21 Impactology Folio Case - iPad Air 2 - Blue - HHJ72ZM/A. The slim-fitting Tech21 Impactology Folio Case features FlexShock, a cutting-edge hybrid material which absorbs, dissipates, and repels damaging impact force away from your device. The case provides multiple hands-free viewing and typing options and protects the front of your iPad when it's not in use.