How the FlexCore Build Your Own Bundle Works
The Flexcore uses advanced conductive thread technology to deliver consistent performance without bulky wires or stiff panels.
Button Functionality
Press and hold 3 seconds: Power on/off
Single press: Cycle through heat levels (Low → Medium → High)
Double press: Pre-heat mode (starts on High, auto-drops to Medium)
Intensity Levels
Low , Gentle warmth for mild chill (up to 10 hrs)
Medium , Balanced heat for everyday cold (up to 8 hrs)
High , Maximum warmth for extreme cold (up to 5 hrs)
Built for Heating. Designed for everyday wear.
Comfort, Fit & Design
Dual Control Heating
Power front, back, or both zones separately
3 Heat Settings
Low, medium, or high for each zone
3 Heat Zones
Targeted heat on neck, chest and back
Flexible & Lightweight
Slim fit perfect for layering
Behind the Name
Flexcore
30-Day Returns
Easy exchanges
1-Year Warranty
Full coverage
24/7 Support
Real people, real help
Common Questions About the Flexcore
What does 'dual control' mean on the FlexCore base layers?
Can the FlexCore base layers be worn on their own or only under other clothing?
How long do the batteries last with all zones running?
years of Comfort