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Meet the Beneunder AirBloom 4.0 Sport Jacket — built for dynamic warmth, sweat control, and all-direction stretch. Designed for outdoor workouts in 5–15°C, it keeps you warm without bulk and flexes effortlessly with every move. The FlowWarm system wicks sweat in 4 seconds, while Wind-Go fabric shields from wind and drizzle. Lightweight at ~300g and only 1.3cm thin, it’s your zero-burden performance layer.
Highlights:
- 360° stretch insulation with 110% elasticity
- Warmer than 800-fill down: +7.5°C boost, +39.8% retention
- Sweat-wicking FlowWarm panels, dries in 4 seconds
- Moisture-resistant, won’t clump even in damp cold Ultra-light: ~300g, ~1.3cm, packable and machine washable