They provide warmth on cold morning workouts or high mountain hikes breathe well enough to never get too hot and resist odour naturally so you can wear them multiple days in a row with flatlock stitching and a brushed elastic waistband the oasis leggings keep up with the most dynamic movements why icebreaker merino the merino is an ancient breed of alpine sheep over millions of years they evolved a superfine highly breathable fleece to protect them from freezing winters and scorching sum