wired4funspike:2022 - #6: Manbound is in a vac sack where he tightens the sack against his body by r
wired4funspike:2022 - #6: Manbound is in a vac sack where he tightens the sack against his body by removing the air himself. He inhales internal air from the sack through the hoses and exhales though the gas mask. When tight enough, the Dom flips the valves (yellow and red) so the occupant gets fresh air from outside the vac sack. -- source link