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