There's a cool wind blowing when you reach the top of the mountain. But you've come prepared with the ROUTEBURN VEST in your pack. This gilet will keep you warm and cosy, and is made entirely of synthetic materials. The MICROGUARD SUPERLOFT synthetic fibre insulation has a similar lofting capability to down and a very good warmth-to-weight performance. The STORMLOCK outer fabric is breathable, light and windproof - ideal attributes for active outdoor sports. It doesn't matter if the ROUTEBURN VEST gets wet, either, because it loses none of its insulation performance and dries out again quickly. The gilet can be layered up or worn as a standalone. In wet weather you can wear it under your hardshell.