On a chilly morning ascent or a windy afternoon up on The ridge, you follow your ambitious plans in all temperatures. The Mens Andean Peaks Jacket keeps you warm when you're on the move. The combination of a thin, windproof outer shell and Jack Wolfskin's high performance Microguard Maxloft Q.M.C. synthetic insulation is ideally suited to outdoor sports in changeable conditions. Both fabrics are fully breathable and allow moisture to be expelled quickly to the outside, leaving you feeling both warm and dry. And when you no longer need it, this lightweight jacket packs down small and can be stashed in your pack.