A breathable thermal layer for active tours: a lightweight, hooded jacket made with innovative Polartec Alpha insulation. A combination of stretchy outer and inner fabrics with high-stretch insulation provides unbeatable freedom of movement paired with excellent thermal properties. Breathable Polartec Alpha ensures an optimal microclimate. The form fitting jacket has a very small pack size and is easily stowed in its own pocket. The Bluesign standard guarantees environmentally friendly materials.