Meet the Beneunder Thermal Base Layer Series — designed for cold-weather adventures and cozy everyday warmth.Engineered with dual-tech fabrics, this series balances heat retention, moisture control, and skin-friendly comfort.The Heat-Lock line features moisture-activated thermofibers that warm up by up to 8 °C.The Amino-Skin line infuses amino acids and silk protein to hydrate skin and reduce winter dryness and static. Highlights Moisture-Heating Tech: converts moisture into warmth, increasing skin temperature by 8 °C + Dual-Layer Warm Fibers: inner hollow knit traps heat, outer layer blocks cold air Amino-Acid Blend: nourishes skin, locks in hydration, reduces friction Soft-Touch & Stretchy: 360 ° flexibility for comfortable layering or standalone wear Anti-Static Barrier: stays smooth through repeated washes Skin-Friendly Warmth: retains softness even in low-humidity environments
