X-Bionic Energy Accumulator Shirt - Long-Sleeve - Women's

The X-Bionic Women's Energy Accumulator Long-Sleeve Shirt compresses your muscle for greater power and distributes your body heat to keep you comfortable.

The North Face Lora Ridge Mock Fleece Top - Long-Sleeve - Women's

Slip on The North Face Women's Lora Ridge Long-Sleeve Mock Top for a casual night out or cozy night in. Its lightweight, quick-drying, brushed fleece with anti-pill finish makes this top easy to wear and easy to maintain.

The North Face Velocitee 1/4-Zip Shirt - Long-Sleeve - Women's

The North Face Women’s Velocitee ¼-Zip Shirt is a great companion to have with you during strenuous outdoor activities.

Marmot Power Stretch Half-Zip Fleece Shirt - Women's

Body-hugging Polartec Power Stretch Fleece fabric makes the Marmot Women's Power Stretch Half-Zip Shirt an excellent first layer for cold-weather activities.

The North Face Momentum Hybrid 1/4-Zip Shirt - Long-Sleeve - Women's

Stay on pace when you wear The North Face Women’s Momentum Hybrid ¼ Zip Long-Sleeve Shirt. This temperature-regulating, moisture-wicking top can keep you going on those cold morning runs.

CW-X Insulator Zip-T - Long-Sleve - Women's

When you can't stand the gym one more second, go for a refreshing jog through the snow with the CW-X Insulator Zip-T.

Mountain Hardwear Double Wicked Lite T-Shirt - Long-Sleeve - Women's

The North Face Impulse 1/4-Zip Hooded Top - Long-Sleeve - Women's

You never know when the carbonized bamboo in The North Face Impulse ¼-Zip Hoody will come in handy.

Columbia Jammin' Journey Half-Zip Top - Long-Sleeve - Women's

For epic trips, long vacations, and normal days around town, a warm, stretchy fleece like the Columbia Women’s Jammin’ Journey Half-Zip Top is pretty much essential.

Columbia Mountain Tech Top - Long-Sleeve - Women's

Head out for a hike or mountain bike ride with sun protection from the Columbia Women's Mountain Tech T-Shirt.

The North Face Celestial Top - Long-Sleeve - Women's

The North Face Women’s Celestial Top does just this—a built-in bra with racerback straps stays firmly in place, and mesh side panels assist with rapid moisture evaporation.

Icebreaker GT150 Dash 1/2-Zip - Long-Sleeve - Women's

You don’t want to pack much on your backpacking trip, and you also don’t want to smell like a gym locker at the end of the two weeks. Bring the Icebreaker Women’s GT150 Dash ½-Zip Shirt.

The North Face Aries Hybrid 1/4 Zip - Women's

The merino wool and polyester body combined with side wicking panels allow The North Face Women’s Aries Hybrid ¼-Zip Shirt to provide you with optimal moisture management for your cold-weather aerobic pursuits.

Horny Toad Verna Top - Long-Sleeve - Women's

Is it a bike jersey? Or a sporty-casual shirt? In fact, you can have your cake and eat it too with the Horny Toad Women’s Long Sleeve Verna Top.

Mountain Hardwear Butter Topper Hooded Shirt - Long-Sleeve - Women's

Well, butter my butt and call me a biscuit. The Mountain Hardwear Women’s Butter Topper Hooded Shirt is silkier than a kiddie pool full of warm honey butter.

CW-X VersatX Web Top - Long-Sleeve - Women's

CWX built structural support and excellent wicking capability into the CWX Women’s Long Sleeve VersatX Web Top, keeping you posture upright throughout your run and maximizing your body’s efficiency.

The North Face Impulse 1/4-Zip Top - Long-Sleeve - Women's

The North Face put ventilating panels under the arms of the Women’s Impulse ¼-Zip Top for superb airflow during sweaty runs, hikes, and biking escapades.

Icebreaker BodyFit260 Crewe - Long-Sleeve - Women's

We can see why the Women's BodyFit260 Crew is one of Icebreaker's best selling base layers every year.

CW-X LiteFit Zip-T Sport Top - Long-Sleeve - Women's

When the sun finally decides to make an appearance, slip on the CW-X LiteFit Zip-T Sport Top and hit the road for a nice long run.

Icebreaker BodyFit150 Atlas T-Shirt - Long Sleeve - Women's

Pull on the slim-fit Icebreaker Women's BodyFit150 Atlas Long-Sleeve T-Shirt to go for a hike or trail run, or for a day at the climbing crag. This crewneck merino wool shirt insulates so you stay warm on cool days.

Spyder Lapis Dry W.E.B. Shirt - Long-Sleeve - Women's

What’s going to slide under your ski jacket this winter? Something soft, smooth, and warm? Something that can also cool you down after a hard mogul run? Sounds like the Spyder Women’s Lapis Dry W.E.B. Shirt.

Spyder Precious Dry W.E.B. Shirt - Long-Sleeve - Women's

Your ski outfit just isn’t complete without a high-quality baselayer. Pull on the Spyder Women’s Precious Dry W.E.B. Shirt, and enjoy staying dry and warm on the slopes.

prAna Fiona Pullover Top - Long-Sleeve - Women's

The prAna Women’s Fiona Pullover Top’s unique shape stands out whether you pair it with jeans, capris, or a skirt.

Spyder Lapis USSA Dry W.E.B. Shirt - Long-Sleeve - Women's

It's not fun to be stinky halfway through your ski day. Spyder used an antimicrobial treatment on the Women's Lapis Dry W.E.B. Shirt, so you can sweat without feeling self-conscious.

prAna Annika Turtleneck Top - Long-Sleeve - Women's

The prAna Women's Annika Turtleneck slides easily over your fitted tanks for chilly climbing approaches.

Roxy Athletix Run Roxy Run Shirt - Long-Sleeve - Women's

Cloudveil Run Don't Walk Zip Neck Shirt - Long-Sleeve - Women's

Like when you were young, the Cloudveil Run Don't Walk Zip Neck reminds you that you had the right idea years ago; to keep moving.

Mountain Hardwear Marin T-Shirt - Long-Sleeve - Women's

Cloudveil Run Don't Walk Hooded Sweatshirt - Women's

As the name implies, the Cloudveil Women's Run Don't Walk Hoody Sweatshirt is ideal for early morning trail runs, but this midweight, stretchy fleece also works as a casual layer, or a mid-layer under your shell for long backcountry ski tours.

GoLite Vermillion Thermal 1/3 Zip Top - Long-Sleeve - Women's

Under Armour Coldgear Quarter-Zip Shirt - Long-Sleeve - Women's

When you wear the Under Armour Women’s Coldgear Quarter-Zip Long-Sleeve Shirt, ‘braving’ the cold becomes more like a walk in the park. This lightweight top keeps you warm when the mercury drops down to say hello.

Sugoi Speedster2 Top - Long-Sleeve - Women's

The hooded Sugoi Women's Speedster Top traps body heat and wicks perspiration so you stay comfortable in cold weather.

Pearl Izumi Fly Top - Long-Sleeve - Women's

Since you sweat even when it's chilly out, Pearl Izumi made the Women's Fly Long-Sleeve Top with mesh vents in the armpits and a front zipper.

Sugoi Wallaroo 290 Speedster Top - Long-Sleeve - Women's

Sugoi chose merino wool for the Women’s Wallaroo 290 Speedster Long-Sleeve Top, gave it a hood and thumb holes, and declared it a winner.

X-Bionic Energizer T-Shirt - Long-sleeve - Women's

For all you tech junkies, the X-Bionic Women’s Energizer Long-Sleeve T-Shirt hits the spot.

Berghaus Chutura Stretch Shirt - Long-Sleeve - Women's

With a smooth face and soft, grid-fleece backer, the Berghaus Women’s Chutura Stretch Shirt wicks moisture and controls core temperature while easily layering up for colder outings.

Lolë Pure Top - Long-Sleeve - Women's

The Lolë Women’s Pure Top doesn’t look like a shirt you’d go hiking in or sweat all over during yoga class, but its comfy, stretchy fabric with a wicking finish can handle whatever you dish out.

Ex Officio ExO Dri Pointelle Scoop Shirt - Long-Sleeve - Women's

Ex Officio used performance Dri-Release fabric to make the Women’s ExO Dri Pointelle Scoop Shirt something you can wear on a plane, on a trail, or just in the neighborhood with your dog.

Sugoi Verve Top - 3/4-Sleeve - Women's

The Sugoi Women’s ¾-Sleeve Verve Top’s block design and extra light mesh fabric gives you a fresh look and feel.

Lolë Sumptuous Hooded Pullover - Women's

You haven't ice-skated in years, but your boyfriend thought it would be fun. Slip into the Lolë Women's Sumptuous Hooded Pullover and glide out onto the ice.