Insulation Guide
Down, the layer of feathers found closest to a duck’s or geese’s body, is nature’s greatest insulator - it’s lightweight, easily compressible and incredibly warm. All First Ascent Down Jackets are hypoallergenic, made of Responsibly Sourced Down (RDS), and DWR coated. Make sure you stay warm and protected this winter with your next perfect adventure companion.
EXPEDITION
Conditions
Warm with a substantial fill weight. Heavy-duty & water-repellent outer for durability.
Best For
Hiking, Skiing, Expedition
Key Features
Lightweight
Wind Resistant
Warmth
MID-WEIGHT
Conditions
Moderate drizzle - surfaces stream with water
0.5mm/hr < 4mm/hr
Best For
Hiking, Mountaineering, Skiing, Everyday
Key Features
Lightweight
Wind Resistant
Warmth
LIGHTWEIGHT
Conditions
Ideal layering pieces that provide a great warmth-to-weight ratio.
Best For
Hiking, Everyday
Key Features
Lightweight
Wind Resistant
Warmth
Insulation Guide
Down, the layer of feathers found closest to a duck’s or geese’s body, is nature’s greatest insulator - it’s lightweight, easily compressible and incredibly warm. All First Ascent Down Jackets are hypoallergenic, made of Responsibly Sourced Down (RDS), and DWR coated. Make sure you stay warm and protected this winter with your next perfect adventure companion.
EXPEDITION
Conditions
Warm with a substantial fill weight. Heavy-duty & water-repellent outer for durability.
Best For
Hiking, Skiing, Expedition
Key Features
Lightweight
Wind Resistant
Warmth
MID-WEIGHT
Conditions
Moderate drizzle - surfaces stream with water
0.5mm/hr <4mm/hr
Best For
Hiking, Mountaineering, Skiing, Everyday
Key Features
Lightweight
Wind Resistant
Warmth
LIGHTWEIGHT
Conditions
Ideal layering pieces that provide a great warmth-to-weight ratio.
Best For
Hiking, Everyday
Key Features
Lightweight
Wind Resistant
Warmth