This kit comes in sizes from small thru 2x and is designed to stow away in your vehicle, in most cases under your seat. Experts have advised that biological, chemical, and fallout contaminants are most often absorbed thru inhalation or skin absorption. our COVER UP KIT is designed with this in mind. In today’s world of deadly pandemics and endless possibilities of chemical and nuclear threats, it is prudent to be prepared! Buy one for the whole family, put it underneath your vehicle’s seats, and rest easy knowing that if the worst happens, your family will be ahead of the curve. This kit comes in a thick Mylar bag to defend against heat and oxygen breaking down the materials in the kit.