Meet our most technical, insulated running jacket: the CLIMASHELL PRO ALPHA.
Super lightweight at just 195g (average across all sizes), the CLIMASHELL PRO ALPHA JACKET brings together three premium fabrics, to create a garment that regulates your body warmth during intense exercise in the cold.
Body mapped Polartec® Alpha™ Active Insulation acts to keep hear in when you need it, and lets it out when you don’t. Pertex® Quantum Air fabric provides a wind and water resistant shell, to keep you protected in challenging conditions. Finally a Polartec® Power Grid™ fleece back panel offers high stretch and breathability.
Whether long winter training runs, or mountainous ultramarathons, the CLIMASHELL PRO ALPHA JACKET gives you dependable lightweight protection. Designed specifically for running, the CLIMASHELL is optimised for stop/start activities, or runs that vary in intensity by regulating your body temperature accordingly.
 
Polartec® Alpha™ Active Insulation
Stay warm in challenging conditions with Polartec® Alpha™ Active Insulation. Lightweight and fast drying, this premium insulation is compressible for easy packing too. Alpha™ Active Insulation helps regulate body warmth by keeping heat in when you need it, and letting it out when it's not. Ideal for stop/start activities or hilly long runs where the intensity varies.
Pertex® Quantum Air Wind & Water Resistant Shell
Stay protected from the wind with the CLIMASHELL PRO ALPHA JACKET's zoned areas of Pertex® Quantum Air fabric. This superlight, soft material is wind and water resistant, but also air permeable - helping you to maintain your temperature during intense exercise.
Polartec® Power Grid™ Back Panel
The back of the CLIMASHELL PRO ALPHA JACKET is made from Polartec® Power Grid™ fabric. This lightweight material is made for movement, offering high stretch and superior wicking and high levels of breathability. All this while still providing warmth when you need it.
Super Lightweight
Although highly technical, the CLIMASHELL PRO ALPHA JACKET is surprisingly lightweight, due to it's carefully considered mapping of fabrics. Weighing just 195g (average across all sizes), it offers exceptional warmth and protection for its weight.
Packable
When not in use, the CLIMASHELL PRO ALPHA JACKET packs down into its own back pocket, ready for stashing in a running vest or waist pack.