| Pressure | TBD |
| Suit mass (1g) | 287 lb |
| Life support (primary) | Backpack PLSS — liquid cooling, oxygen, humidity, telemetry |
| Life support (backup) | Station interfaces |
| EVA duration | 7 hours |
| Program | Tiangong Station |
| Agency | CMSA / CNSA |
| Manufacturer | CASC |
| First use | 2021 |
| Status | Active fleet |
| Donning / entry | Second-generation EVA suit; white with colored crew-ID trims |
~130 kg; ~$4.14m unit cost; >7hr EVA; 15 uses/3 years standard — exceeded by 2025; liquid cooling; telemetry
Tiangong station assembly, maintenance and external payload tasks
Mass, dexterity, maintenance turnaround and consumables management are active watch items; lifespan now being extended
"Once a suit becomes a fleet asset, lifecycle economics and telemetry matter more than peak performance figures"
Active ISS-equivalent benchmark — China is building a sustained EVA operating model, not a demonstration capability
Suit lifespan initially limited to 15 EVAs over 3 years; exceeded in operations before upgrade to 20 EVAs/4 years D/E series
→ Track cost-per-EVA, turnaround time and anomaly-free hours as primary KPIs once a suit enters fleet operations
"Rescue suit discipline must be kept separate from EVA product line — do not overbuild IVA with EVA objectives"
"Pragmatic dual-track approach — import to reduce mission risk while demonstrating domestic capability simultaneously"
"Lunar suit must be treated as a new architecture branch — not an incremental Feitian derivative — due to dust, terrain and thermal differenc…"
