The best insulated jackets are the ones you barely notice—until the temperature drops. The Filson Ultralight Jacket is built around that idea, delivering dependable warmth without adding unnecessary weight or bulk.
Constructed from a lightweight 1.5-ounce Cordura ripstop nylon shell, the jacket is designed to disappear into your pack until it’s needed. Inside, 60-gram PrimaLoft Gold insulation provides an impressive warmth-to-weight ratio while continuing to insulate even when wet, making it a dependable layer for unpredictable weather.
Filson also paid attention to the details that matter in everyday use. A reinforced shoulder yoke adds durability where backpacks tend to create the most wear, while elastic-bound cuffs and hem help seal out cold air without restricting movement. Zippered hand pockets and an interior security pocket keep your essentials secure, and when the day warms up, the jacket packs into its own pocket for easy storage.
Specs
- 1.5-oz. Cordura ripstop nylon shell
- 60g PrimaLoft Gold insulation
- Retains insulation when wet
- Reinforced shoulder yoke
- Packs into its own pocket
- Zippered hand pockets
- Interior security pocket
- Elastic-bound cuffs and hem
- Lightweight, packable design
- Price: $249
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