Recommended for lifestyle and outdoors.

Atom SL Hoody Women's is a light, packable insulated jacket designed for climbing, hiking, trail running, and everyday use, built as a light, packable layer that adds breathable, weather-resistant warmth in cold, wet conditions.

• Product Type: Women's light, packable insulated jacket
• Material: Fortius Air 20
• Weight: 240g
• Stretch synthetic insulation in the body with uninsulated sleeves and hood to focus warmth on the core and maximise packability
• Octa Fleece side panels for increased breathability and reduced micro shedding
• Lined StormHood that is no longer stowable

Layer it under a women's shell jacket and pair with a women's trail running shoes for cold, wet trail days.

Lighter than the original, the Atom SL Hoody is one of the most useful (and packable) pieces you can own. Wear it as a standalone layer when trail runs take you through cold, wet weather or layer it with a waterproof shell when mountain pursuits demand additional warmth and mobility. Breathable and weather-resistant, it has stretch insulation in the body but not the sleeves or hood — maximizing packability while still delivering focused warmth to your core.

What's been updated: Updated with recycled Fortius Air 20 fabric, recycled stretch synthetic insulation, and FC0 DWR finish for improved mobility and a lower footprint. New Octa Fleece side panels give enhanced breathability and less micro shedding. The StormHood is now lined and no longer stowable. The Bird logo is embroidered for long lasting visual.

Need a heavier option? Try the Atom Hoody.

Lightest Atom Hoody for high-output activities Moisture-resistant outer face fabric Breathable Lightweight Compressible and packable Durable Wind resistant Ultralight Fortius Air 20 face fabric effectively balances air permeability and weather resistance with lightweight durability and stretch Stretch synthetic insulation is breathable, warm, and light, adds freedom of movement, and is made with recycled content Lightweight stretch Octa Fleece side panels provide freedom of movement and improve ventilation Fitted, with articulated patterning for mobility and comfort Garment Centre Back Length: Size S is 26"/65cm - Varies by size