Active Insulation

Built for speed and breathability, Patagonia’s Nano-Air Ultralight Hoody keeps you warm without overheating—just don’t expect hand pockets. Patagonia says:  For cool, high-output days when you need...

UOG TOP PICK - Nano-Air Light Hybrid Hoody Patagonia Womens Nano-Air Light Hybrid Hoody is an insulated soft shell full zip technical jacket for cold weather high-exertion activity. A classic in the...

A streamlined hybrid layer that balances warmth, breathability and movement for fast days on the hill. Montane says:  The ultimate lightweight thermal regulator, Primaloft Gold Active Vent insulation...

UOG TOP PICK: Light, breathable, and packable, the Mountain Core Jacket provides active insulation that strikes a balance between warmth and airflow — an ideal mid-layer for cold, fast-paced mountain...

We're working out what we think - we'll add our view here!  Mountain Equipment says:  Light, warm, and reliable. With 60g Aerius™ synthetic insulation and a mountain-ready design, this jacket...

We're working out what we think - we'll add our view here!  Mountain Equipment says:  Fast-drying, warm, and built for changeable conditions - this alpine layer works solo or with other compatible...