The Mens Tephra Stretch Reflect Jacket from Berghaus is a super warm jacket that is designed to direct body heat back to your core using in built, ultra-light Reflect technology – which keeps you up to 20% warmer* than you would be without it. While the Hydrodown filling, made up of RDS certified down treated with Nikwax, is able to keep you warm all day long, even in wet conditions. To reduce the bulk, areas of lightweight PerTex Quantum on the outside are windproof and bring easy movement to strenuous hikes. This paired with stretch fleece panels under the arms and sides creates a performance fit. So there’ll be no stopping you on your next freezing challenge.