If you are looking for comfortable and heated bottoms that offer elasticity and traditional thermal properties, these Montbell Merino Wool bottoms are for you. At 3.7 oz. These bottoms are made with the highest quality wool from New Zealand and offer superb moisture control and new levels of comfort and performance. They are made with a fine gauge 18.5-micron fiber that makes this Merino Wool feel extremely smooth and stretchy, giving you plenty of room to move in your pursuits. On your early morning run over Kearsarge Pass or as you burrow into your sleeping bag after a long day’s hike in the Sierra, these base layer pants will keep you from retaining moisture and allow you to move freely. Made for movement, durability, and warmth, this Montbell Merino Wool base layer is a must-have for any outdoor enthusiast seeking adventure in cooler temperatures. Weight: 3.7 oz. Fabric: 92% Super Merino Wool + 8% Nylon.