We were looking for a universal layer that we could trust to keep you warm on all our adventures. When we couldn't find exactly what what you were looking for we developed the Backcountry Synthetic Insulated Crew. This top is part hoodie and part insulated jacket providing a versatile, comfortable pullover which can be carried anywhere. Durable nylon face fabric resists abrasion when worn alone , and the round neck design hides well under the shell. Meanwhile synthetic sheet insulation retains heat controls moisture and breathes well so we can participate in high-performance adventures regardless of the weather.