VAR-001 IVA
Mercury IVA spacesuit photograph

Mercury IVA

NASA · B.F. Goodrich
1959–1963
Pressure
3.7 psi / 25.5 kPa
System mass
22 lb
Life support
Vehicle provided
EVA duration
N/A

"Even a simple IVA suit needs water survival and cockpit visibility contingencies"

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RU-001 IVA
SK-1 / SK-2 spacesuit photograph

SK-1 / SK-2

Soviet Space Program · Zvezda
1961–1963
Pressure
300 hPa
System mass
TBD
Life support
Vehicle-supported open-loop + post-ejection oxygen
EVA duration
N/A

"Shows value of integrated survival architecture and the penalty of long-duration IVA wear in a rigidly seated posture"

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RU-007 IVA
Sokol KV-2 spacesuit photograph

Sokol KV-2

Roscosmos · Zvezda
1980–present
Pressure
400 hPa
System mass
TBD
Life support
Vehicle-supported open-loop
EVA duration
N/A

"Keep rescue-suit platforms on a managed block-upgrade path instead of deferring subsystem refresh for decades"

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CN-001 IVA

Shenzhou IVA / Rescue Suit

CMSA / CNSA · CASC
2003–present
Pressure
TBD
System mass
TBD
Life support
Vehicle oxygen + emergency tanks
EVA duration
N/A

"Rescue suit discipline must be kept separate from EVA product line — do not overbuild IVA with EVA objectives"

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VAR-020 IVA
Boeing Starliner Suit spacesuit photograph

Boeing Starliner Suit

Boeing · Boeing + David Clark Company
2019–present
Pressure
TBD
System mass
TBD
Life support
Vehicle-supplied via umbilical connector
EVA duration
N/A

"Demonstrates two parallel commercial crew suit philosophies — Boeing’s heritage David Clark design lineage versus SpaceX’s clean-sheet in-ho…"

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VAR-019 IVA
SpaceX IVA Suit spacesuit photograph

SpaceX IVA Suit

SpaceX · SpaceX (in-house, designed by Jose Fernandez)
2017–present
Pressure
TBD
System mass
TBD
Life support
Vehicle-supplied via single umbilical connector
EVA duration
N/A

"Commercial crew programs can compress decades of incremental government suit evolution into a single clean-sheet design by prioritizing manu…"

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ESA-002 IVA

EuroSuit IVA Prototype

CNES + ESA · Spartan Space + MEDES + Decathlon
2024–present
Pressure
TBD
System mass
TBD
Life support
Vehicle-supported — spacecraft interfaces
EVA duration
N/A

"Non-traditional partners — sports equipment manufacturers, medical research institutes — can enter human spaceflight hardware through IVA ra…"

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