|Ancient environmental suit|
The environmental suits are mainly used to keep the wearer alive in harsh environments. They provide a six-hour oxygen supply for non-breathable atmospheres, protect against small amounts of radiation, and can be used in the vacuum of space. The helmets contain voice-activated radios to communicate between individuals and a short-range transmitter built into the left wrist for communication with Destiny. The suit is also designed to allow the wearer to relieve their bladder while inside as it is very difficult for users to get into (and out of) suits by themselves.