Women's Aenergy Air IN Hooded Jacket 26/27

The Aenergy Air IN Hooded Jacket is Mammut's active insulation layer, built to stay on all day while climbing, hiking and ski touring. It is filled with Mammut LOOPINSULATION Active, a 100% recycled fill made from 50% rope production offcuts and 50% rPET, at 60 g/m² in the body and 45 g/m² in the sleeves and hood. It weighs 410 g.

The trade-off of active insulation is that it is tuned for breathability, not maximum loft. It will not match a big down jacket standing still in the cold, but it is far more comfortable to keep on while you are working hard uphill.

It is for ski tourers, climbers and hikers who hate stopping to swap layers. The fill breathes and stretches while you move and holds warmth when you stop, and the stretchy 30D shell has a PFC-free DWR finish.

Athletic fit with a fitted hood that goes under a helmet, elasticated cuffs and hem, a 2-way front zipper, two side pockets that work with a hip belt or harness and a chest pocket. It stows in the included packing bag.

We love the Aenergy Air as the layer you put on at the trailhead and forget about until you are back at the car.