Mac in a Sac - Polar Reversible Down Jacket (Mens) Sleeping Bag Liner - It's ultra light and

- It's ultra light and durable

4V 4000mAh Lithium

Ni-CD rechargeable cell size

Steel gears are hardened and durable

The bilaminate construction made from one soft and one firm layer of foam guarantees a high level of carrying comfort

Mac in a Sac - Polar Reversible Down Jacket (Mens) Sleeping Bag Liner - It's ultra light andA lightweight, packable down filled jacket with four season versatility. With responsibly sourced RDS duck down, the Polar Series is lightweight, packable and warm. Reversible colours make for an easy change of look. Whether you are an intrepid explorer, a weekend adventurer, or a daily commuter, the Polar Series will soon become your go to everyday carry. When the temperature drops, simply unpack and zip up for the ultimate in warmth. True to size,