Arc'teryx

Summer temperatures are nice, but not forever. When the temperature drops, the Atom sleeveless jacket is there to protect you. It's so compact and lightweight, there's no reason to leave it at home. The efficient, lightweight, compressible Coreloft™ insulation is strategically placed on the chest and back. Tyono™ 20 material balances airflow with wind resistance and has a DWR finish to repel moisture. Stretch fleece side inserts promote ventilation, while the non-insulating hood, which is retractable when not needed, adds protection.

• Synthetic, insulating and versatile mid-layers with highly waterproof properties.
• Insulation designed for quick drying, increased durability, and high thermal performance even when wet.
• Sleek design and ultra-lightweight materials, focusing on lightness and compressibility, rather than durability.
• The addition of pigments to polymer fibers saves water, reduces CO2 emissions and produces a more colorfast fabric.
• Versatile, high performance designs for a variety of conditions and activities.
• Close fit.
• Weight: 269g.