Weather is anything but consistent and there's no time to lose when you're in the backcountry. The Lochsa 3/4 Zip Off Pant keeps you moving quick and adapting quicker. Featuring thoughtfully-placed zippers to assist in adding and shedding layers, even when wearing boots, adapting your layering system has never been easier.300 GSM merino layers provide the thermal efficiency necessary for colder environments. Crafted from a 93.5% merino wool and 6.5% Spandex blend, these garments trap body heat while maintaining breathability, preventing overheating and keeping your temperature regulated during low or high intensity activities, even in freezing conditions.