The Rundown
Developed for winter athletes who like to bring the heat, the reimagined I-Thermic X-Warm base layer top 2.0 builds on its predecessor with an integrated heating system that can be controlled via your smartphone to deliver warmth where you need it most. Now with a more streamlined fit, longer battery life and enhanced app integration, this base layer is ideal for a wide spectrum of start-and-stop winter activities - from the ski lift to lunch on the patio to après-ski - using responsive sensors woven into the fabric in key thermal zones, controlled by the Clim8 app, which you can set to your exact preferences. Off grid? Manually adjust using the rechargeable battery that sits neatly in its own pocket. No need to pack an extra layer. I-Thermic offers intelligent thermoregulation right at your fingertips.
Base layers without equal for wherever you lead the day.

Low
Moderate
High
Activity Type
Anything High Intensity
Ski & Snow
Fabric Specs
Synthetic
Merino
Designed for an exceptionally lightweight feel on the skin. Good amounts of stretch. Moisture-wicking and quick-drying, helping regulate body temp. Made durably for many seasons of wear.
X-Warm
Especially warm sportswear and functional underwear for the cold. Extra-warm fabrics protect the sensitive areas of the body in very low temperatures. With effective moisture transport that also keeps you comfortably warm.

I-Thermic pieces seamlessly integrate the Clim8® intelligent heating system, which can be controlled manually or via the smartphone app.

Our seamless products use advanced knitting technology to construct garments in one piece, minimising seams and reducing waste. With body-mapped ventilation and four-way stretch, they offer smooth, ergonomic comfort and performance.