Now TacVent comes with Velcro to help it stay in place. (Photo: TacVent)

Now TacVent comes with Velcro to help it stay in place. (Photo: TacVent)

The TacVent is a flexible layer of semi-rigid, rubbery plastic comprised of vented grooves designed to be placed between a concealable ballistic vest and undershirt with a half-inch separation to provide airflow. Now TacVent comes with Velcro to help it stay in place. The TacVent helps to cool body temperatures by over 14.5 degrees while also minimizing blunt force trauma.