The Burton Women's Heavyweight X Base Layer Pants turn up the climate control on the coldest days with highly breathable, heavyweight fleece fabric. These pants are geared up with Heavyweight 300 Living Lining® that provides consistent temperature regulation without adding bulk or weight. They are designed with a next-to-skin fit that hugs the body with minimal extra fabric and lets you keep your music close with the easy-access dual phone-stash pockets. Stink-free warmth, close-quarters fun ahead, the Burton Heavyweight X Base Layer Pants knows this saying well.