The Portal® Biome Insulated Jacket is a midweight essential engineered for cold-weather hikes and everyday wear. Featuring Japanese 10D ripstop nylon and filled with 150GSM Thermore® Eco Down, it provides reliable warmth and breathability in cool to cold conditions. With practical features like underarm ventilation, packability, and multiple pockets, it’s built for performance without compromising comfort.

• 100% recycled nylon shell / 100% recycled polyester filling
• Breathable underarm panels for added ventilation
• Packs into internal dump pocket with cinch closure