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Mk. 50 Compression Suit

The IRC Mk.50 Compression suit, or MK 50 Compression suit, was a high quality, military issued compression suit designed for extra vehicular activity (EVA).

Overview[]

IRC Mk.50 Compression suit[]

For low pressure operations, one of the most commonly used suits in service was the Mk.50 Compression suit. The suit consists of an inner thermal regulation garment and two outer layers of tight fitting elastic fabric with an airtight covering to compress the wearer's body against the effects of low pressure. No decompression period is required before donning the suit, and they provide greater freedom of movement than a pressure suit. Furthermore, without the need to maintain suit pressure, less breathable gas needs to be carried and life support packs can be considerably lighter. However, the suits take longer to put on than pressure suits, are less comfortable over long durations and provide no protection against high pressures.[1]

Because the Mk.50 is worn so tight, many items of standard Marine equipment can be adjusted to fit over them. Special BDUs printed with a high contrast pattern are used on airless worlds. The life support pack is clipped to the back of an M3 armor vest and connects directly to the helmet and thermal regulation suit. Inside the helmet a Marine wears a cloth cover, to which is attached a Head Mounted Sight.[2]

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