Warmth on demand. Comfort with every step.

Take on winter with Thermalis boots, featuring rechargeable heating technology built into the insoles. Choose from four heat settings (35°C, 45°C, 55°C and 65°C) using the convenient button on the tongue of the boot, and recharge easily with USB-C.

Soft polar fleece lining and memory foam cushioning keep your feet cozy, while water-resistant construction helps protect against winter moisture. Paired with Yellow’s Friksion outsoles for added grip, Thermalis boots combine warmth, comfort and style for your daily commute and outdoor adventures.

Water resistant
THERMALIS: Built-in Rechargeable Heating Technology
Functional zipper
Designed in QC

This style fits true to size, order your normal size.
Upper: Nylon fabric with with sidequarter zipper for ease of entry and better fit. Water resistant
Lining: Extra comfortable polar fleece with foam backing
Lining of insock: Extra warm polar fleece
Insole: Memory foam cushioning that naturally contours feet for all-day comfort and support
Outsole: TPR outsole with slip resistant Friksion technology
Round toe
Heel type: Flat