Warmth starts at the core and getting the layering right is critical to a comfortableday outdoors and in the mountains. Our evolved layering system caters to differenttemperatures and different intensity activities, from ultra lightweight 125gm,lightweight 200gm and midweight 260gm base layers, to heavier midweight waffleknits and merino insulated mid layer jackets. This is a top to bottom layeringassortment for the peak to the parking lot. 37% RAYON FROM BAMBOO,16% MERINO WOOL, 44% RECYCLED POLYESTER,3% ELASTANE Size Guide