Cavechat.org

Spider Style Climbing
Kostadinov | March 25, 2013

"The device consisted of vacuum backpack, support system and suction gloves which are sealed onto the surface when pushed to it. The Personal Vacuum Assisted Climber(the PVAC) allows the average soldier to climb walls made of glass, brick, concrete and any other material."
http://interestingengineering.com/index ... -climbing/

Pretty cool! It would suck (pun intended) if the vacuum pack quit working halfway up the wall.
I am surprised that the seal holds on a porous and uneven surface like a brick wall.

Trogman