Buying a bigger, heavier ski jacket will only take you so far. Before you know it, you're out on the slopes, feeling like you're wrapped in a giant marshmallow, and still freezing. That's where baselayers come in. You only know them as long johns from when you were a kid, but they've re-branded themselves today to be much cooler and tech-friendly. Plus, now these baselayer tops come in merino wool, making them comfortable as a layering piece for the ski hill or perfect for lounging around after you've put in a hard day's work slaying pow.