The Men's Black Diamond Solution 2.0 Jacket is a lightweight insulation piece for versatility and layering from chilly to cold weather. Wear it alone or under a shell, and between town and mountain, the 60g Primaloft Gold Eco insulation will keep you warm. It's windproof, and a durable water repellent finish adds water-resistance in light rain or snow. As the weather shifts, it compresses into its own pocket, so you can toss it into your pack for later.