READY TO GRIP WHEN YOU NEED IT: The Rime Light In Flex Vest Men insulation jacket is a reliable insulation jacket in case of unreliable weather. Cools and heats up. When it's hot, you can carry it in your backpackThe lightweight, elastic and water-repellent Pertex Quantum Air material is proven against bad weather strikes and ensures breathability and freedom of movement, while the insulation of the jacket offers optimal heat retention. A practical companion in the mountains, suitable for carrying backpack and climbing harness.