Go head-to-head with Old Man Winter with this lightweight, yet high-performance down jacket. The Sister Brook is Interchange-compatible so you can adapt to changing conditions even while the jacket’s funnel neck design, thermal-reflective lining, and 700-fill power down insulation keep you plenty warm on its own. It’s also both ruggedly durable (including a 100% nylon Mini Rip-Stop shell) and highly portable (packable into its own custom stuff sack).
Features:
- Omni-Heat Infinity: 30-50% increase of reflective surface area using golden lining providing maximum warmth.
- Infinity advanced thermal reflective., RDS certified down
- Water resistant fabric
- 700 fill power down insulation
- Packable into stuff sack
- Binding at cuffs
- Drop tail
- Zip-in and 3-point Interchange System
- Shell: Mini Rip-Stop 100% Nylon
- Shell: 100% Polyester
- Lining" Omni-Heat™ Reflective Lite lining 100% polyester
- 700 Fill Power Down Insulation, RDS Certified


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