Mountain Hardwear Men's Kor Strata JacketMountain Hardwear Men's Kor Strata Jacket The original Kor Strata Jacket was a minimalist midlayer for any kind of undertaking where all over insulation is called forthat vision stands true today, now with even more to look forward to. It still takes the sting out of monster and mundane missions alike, it's still fashioned for high active pursuits, and it still brushes off beads of rain or sweat. A top performing piece for every winter weather kit,