The I-Pack (short for Inhibitor Pack) is designed by Dr. Fyodor Malikov as the Sentinels' temporarily solution for inhibitor treatment while in the field. While Inhibitors are normally injected directly into the spine, the I-Pack allows Sentinels to inhale the Inhibitors in the form of an aerosol mist (dubbed "bug juice" by Sentinels). The I-Pack has the appearance of a small backpack with twin hoses going in opposite directions up the shoulders, both leading to a small mask. The effects of the I-Pack are more or less the same as a full Inhibitor shot just less effective.