Sierra says: The Betsey Layer Top acts as a great base layer to help protect against sweat and moisture coming in and still allows it to go out so that your body can breathe. It also comes with a built in bra.

Sierra says: The women's 686 Betsey Layer Bottom goes great with the top to provide your body with full protection throughout the day. The bottom goes down a little below the knees for a perfect length so that you're socks can come up and just barely go over them and you don't get any bunching in your boots.

Sierra says: Pull on the lightweight 686 Women's Modern Support Top under your mid-layer and stay warm on frigid pow days. This scoop-neck long underwear top features a built-in support liner for comfort in motion, thumbholes for maximum warmth, and flatlock seams for easy layering. Embroidered accents and contrast stitching separate the Modern Support Top from your boring long-sleeve thermal...

Sierra says: This Sienna Riding Jersey is a simple and fun product from the women's thermal technology line of 686. The zip-up hoodie has a soft performance dry material and includes a unique six eight six design on the sleeve and left shoulder. It's perfect to wear underneath something as a base layer or mid layer or just when you're hanging out. It also helps prevent odor from oc...

Sierra says: The Cheyenne Fleece is a great pull-over to wear any time of the season and anywhere! The hoodie fleece also comes with a satin lining and print detailing. Super comfortable and super cute to wear any time!

Sierra says: Let your feet live in luxury.

Sierra says: This fashionable fleece features a lightweight smooth faced, stretch microfleece with a sky-high collar and a cool thumb hole cuff feature that makes it hard not to love. Burton says: Layer it up and lead the way!

Sierra says: The ultimate winter warrior.

Sierra says: The very classic 1/4 zip comes with a longer body than normal so that when you're strapping in you don't have to worry about coming untucked. Great for breathing and staying dry. Comes in tropical green. Burton says: Dry heat for the deepest freeze.

Sierra says: These first layer pants keep you all nice and toasty without the unnecessary sweat that goes along with it. Comes with a shorter inseam that won't bunch in your boots and it comes in tropical green to match the expedition zip. Burton says: Protect your buns from freezer burn.

Sierra says: Let your feet live in luxury.

Sierra says: Let your feet live in luxury.

Sierra says: Let your feet live in luxury.

Sierra says: Ladies, keep your lil' feet and toes from frostbite in these snug and warm Burton Fiestas, just tell them theres a party in your socks. S/M fits sizes 4.5-7 M/L fits sizes 7.5-10

Sierra says: Just don't eat the worm.

Olympic retro meets new-school high performance

Sierra says: A very comfortable and thick sock to keep those feet dry and warm all day long.

Sierra says: Who doesn't love polka dots?? The Burton Lightweight Henley Thermal comes with the cute and accessible button down design.

Sierra says: Comes in a very fun and cute tropical brass cupcakes print and true black tidal wave print. Either way you can have a lot of fun in these layers. These truly are the frosting on top of the cupcake. Burton says: Kiss pit puddles goodbye.

Sierra says: Core comfort with a little bit of glam and style. The Burton Lightweight women's thermal crew comes in a fun and intricate design that will provide you with dryness and comfort all day long.

Sierra says: Breathe easy with the Burton Lightweight women's thermal crew. Comes in fun and colorful designs that allow you to stay warm and dry no matter what the conditions.

Sierra says: We'll spare you the wet and give you more of the wild.

Sierra says: Get wild under those pants.

Sierra says: 180 degrees of unlimited mobility and a shorter inseam so that there's no worries of being the slightest uncomfortable all day long while you're tearing up the mountain. Comes in tropical brass cupcakes and true black tidal wave print. Burton says: Ready to rock, from the park to the dance floor.