Adaptive Warmth. Everyday Range.
The Pirin Thermal Jacket is built for movement through shifting temps and changing plans. Powered by Polartec® Alpha™ active insulation, it balances warmth and breathability so you stay comfortable from high output to downtime.
- Adaptive Thermal Regulation – Polartec® Alpha™ insulation releases excess heat during high output and retains warmth when activity slows.
- Weather-Smart Protection – Durable water-repellent overlays at the shoulders and hood block wind and light moisture without sacrificing mobility.
- Easy Layering Control – Exposed Vislon® front zipper with chin guard makes temperature changes quick and comfortable.
- Dialed-In Fit & Storage – Adjustable shock-cord hem and secure pockets keep essentials close and heat where it belongs.
Why You'll Love It
- Lightweight, breathable insulation
- Comfort across changing temps
- Easy everyday layering
- Clean, athletic profile
Why It Performs
- Polartec® Alpha™ Insulation – Actively regulates heat and moisture for consistent comfort across a wide range of activity levels.
- DWR Overlay Panels – Add targeted wind and water resistance where you need it most.
- Ventilated Thermal Design – Helps prevent overheating during movement while maintaining core warmth.
- Adjustable Hem System – Seals out cold air without restricting motion.