The Aconagua Light ML Hooded Jacket from Mammut is a super comfortable mid layer you'll be happy to wear all day on and off a mountain. Blue Sign approved meaning minimal environmental impact.
Mammut says:
The mid-layer you can rely on in the mountains: the Aconcagua Light ML Jacket Men is a functional jacket tailored to mountain conditions. The lightweight, comfortable and stretchable material with high breathability will help you conquer ascents and descents. The flat design of the seams makes it feel very comfortable to wear and avoids chafing under a backpack. A technical mid-layer placing top priority on good performance.
The Mammut's Aconagua Light ML Jacket is a stream-lined mid layer designed to keep you comfortable when on the move. The jacket is quite a slim fit but stretchy and very soft on the skin.
The Aconagua is light on features to keep the weight down. There is a single small chest pocket. There is no adjustment on the cuffs or waist.
The Polartec Power grid fabric gives you comfort and actively wicks moisture away when your working hard. This is a Blue sign product meaning it has been manufactured in a sustainable way limiting the impact on the environment where possible.