Insulating, even when damp, packable and compressible the ThermoBall™ Eco Jacket should be part of any hiker's kit - particularly with the fluctuating weather we have in European alpine environments. This jacket stows in its own pocket for easy storage in a backpack. To top it all off, both the fabric and the insulation are made entirely from recycled polyester, giving discarded plastic a second chance. For full wet weather protection, pair it with a waterproof shell.