Put the Volkl Yellow Zip Mid Layer Shirt over your baselayer for extra warmth while you ski This top is lightweight and wont add a bunch of bulk to your layers but it provides lots of warmth The Yellow Zip Shirt is made with dryWEAR fabric which wicks moisture faster than the average synthetic The result is that moisture wont stay next to your skin where it can steal your warmth dryWEAR fabric quickly pulls moisture to the surface where it can evaporate Breathable and moisture wicking to keep you dry and warm 1/4 zip neck for easy on/off