The NEST-Z kit is the perfect way to protect your devices from the elements and from EMPs. With a 7.0 mil moisture barrier and 5-layer construction, these bags are built to withstand the elements and keep your devices safe. With a 11,500 PSI tensile strength and 33lb puncture resistance, these bags will stand up to the rigors of transport and storage. And with 40db EMI attenuation, you can be sure that your devices will be protected from electromagnetic pulses. The NEST-Z kit is also compliant with ANSI/ESD S541 and ANSI/ESD S20.20, so you can be confident that your devices are protected against static discharge.