GlacierZip – Women’s Medium-Warmth Half-Zip Fleece Base Layer

Meet the Beneunder Half-Zip Fleece Base Layer — designed for warmth, stretch, and all-day comfort outdoors. Made with double-brushed fleece fabric, it offers soft insulation that boosts warmth by +2.1°C and enhances heat retention by 37.8%. The 360° stretch structure moves with your body, while moisture-wicking fibers keep you dry and fresh. Lightweight at just ~225g, it’s perfect for layering or wearing on its own in temperatures from 5°C to 15°C.

Highlights：

• Double-brushed fleece traps heat, +2.1°C warmth boost
• Hollow-core fibers lock in warmth, +37.8% retention
• 360° stretch with 244% expansion, no tightness
• Wicks moisture instantly (521% absorption, 279.6mm/s breathability)
• Ultra-light at ~225g, slim fit without bulk

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