PRO Wool Extreme X LS is a pro-grade, tight-fitting long-sleeve tee with 20% merino wool that keeps you dry during high-intensity workouts in really cold conditions.

This technically advanced baselayer is made of a soft polyamide and merino wool blend that offers excellent moisture transport while also providing just the right amount of warmth for optimal comfort on cold winter days in the cross-country ski tracks and similar locations. In addition, the garment’s thin and functional fabric makes it a great choice also for hikes or treks on chilly spring and fall excursions.