
FNDN Heated Base Layer Socks
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What reviewers say
- 4.2 / 520 ratings
About the FNDN Heated Base Layer Socks
FNDN™ Heated 3.7V Base Layer Socks
Never deal with frozen toes again. The FNDN™ Heated Base Layer Socks are designed as the thinnest, form-fitting heated socks on the market—slim enough to wear under or over other socks while still delivering powerful warmth all day long. Built with Radiant Core Heat™ technology and powered by the ultra-compact BEGO rechargeable battery system, these socks are lightweight, durable, and ready for any cold-weather challenge.
With four adjustable heat levels—including battery-saving Smart Pre-Heat mode—these socks provide up to 4.5 hours of runtime on a single charge. They can also be connected directly to FNDN Heated Base Layer Pants (sold separately) for seamless control from a single waist-mounted module. Perfect for men and women alike, these socks offer comfort and relief for poor circulation, arthritis, Raynaud’s Syndrome, or simply staying warm through long winter days.
Features
Ultra-thin design to wear under or over other socks
Four Radiant Core Heating Levels: High, Medium, Low, Smart Pre-Heat
Up to 4.5 hours of continuous runtime
Small, lightweight BEGO high-performance battery system
Universal USB charging
Compatible with FNDN Heated Base Layer Pants (sold separately)
Machine washable (remove batteries before washing, lay flat to dry)
Fabric
100% Acrylic
Soles: 65% Polyester / 25% Cotton / 10% Spandex
Size Information
S/M: Men’s 4–9.5 / Women’s 6–11
L/XL: Men’s 10–14
Includes
1 pair of FNDN™ Heated Base Layer Socks
Questions and answers
- What do buyers say about the FNDN Heated Base Layer Socks?
- Rated 4.2 out of 5 from 20 ratings.







