Merino wool has long been the tried and true pinnacle of layering materials. It has a crazy warmth-to-weight ratio, it's breathable and moisture wicking, and it stays warm even when it gets wet. Combine that with the power of Helly Hansen's house blend moisture management tech, and you can imagine you're getting just about the best snowsport base layer you could get your hands on, or your knees into. The Helly Hansen Lifa Merino Midweight 3/4 Base Layer Pants are so comfy you might have to set a reminder on your phone to take them off and wash them every few weeks. Plus, they come with a 3/4 length so as not to interfere with your performance boot fit.