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Meet the Beneunder TrueWarm Baselayer — built for fast-dry warmth in extreme cold. Designed with HeatApex Core insulation and 3D-Vents sweat channels, it keeps you dry, locks in heat, and moves with you. Ideal for high-output outdoor activity, it withstands damp chill down to -15°C.
Highlights：
- HeatApex Core: rapid sweat-wicking, long-lasting warmth
- Withstands cold as low as -15°C
- 6-second quick-dry fabric, stays fresh under pressure
- 3D-Vents sweat channels keep body dry during intense movement
- Flexible 360° stretch knit for unrestricted motion
• Free Shipping on all orders.
• 30-day Return: Feel free to send your item back within 30 days of receiving the product.
You can review our shipping and returns policy here.