Why have one insulating jacket for the trail and another for the city when you can have one that does it all? The ThermoBall™ Eco Active Hoodie is filled with synthetic insulation that retains its warming powers even when damp, ideal for in-between season urban environments and the shifting weather in alpine landscapes. It’s light, slim-fitting and doesn’t look bulky or oversized. Plus, it packs down into its own pocket taking up very little space in your backpack. And, to top it all off, both the fabric and the insulation are made entirely from recycled polyester – putting discarded plastic to good use.