HoodFlex – Men’s Medium-Warmth Hooded Stretch Fleece Vest

Meet the Beneunder AirBloom 4.0 Stretch Puffer — engineered for warmth, mobility, and outdoor performance. With 360° stretch insulation and a three-layer heat-storage system, this jacket locks in warmth while keeping you light and flexible. Designed to resist damp chill, it ensures comfort in temperatures from 5°C to 15°C.

Highlights：

• 360° elastic insulation with 110% stretch
• Heat-storage layers outperform 800-fill down
• +7.5°C warmth boost, 39.8% better heat retention
• Moisture-resistant, won’t clump in rain
• Lightweight design, only ~530g & 1.3cm thin