Patagonia MARS Level 3a Alpha Polartec Jacket / Sand Größe:M (new) • Internal mesh pocket fits

• Internal mesh pocket fits up to an 11" laptop/tablet

but it fits more like a L or an oversized M

• Writes from -35 to +121 °C

• High strength polymer design

Patagonia MARS Level 3a Alpha Polartec Jacket / Sand Größe:M (new) • Internal mesh pocket fitsPatagonia Polartec Alpha insulated jacket as part of MARS (Military Advanced Regulator System). Polartec Alpha was invented for the U. S. Special Forces. They required a superior insulation system for extreme temperature variations and the start stop conditions of combat. Polartec Alpha regulates warmth, is fast drying, lightweight, has advanced breathability and is highly durable. Patagonia discontinued production of this jacket. This is an unique