Outdoor Research Essence Duo T-Shirt - Short-Sleeve - Women's

The Outdoor Research Women’s Essence Duo Short-Sleeve Shirt provides essential features for your runs, hikes, and climbs (and it won’t weigh you down with excess pockets and zippers).

Patagonia Bandha Top - Short-Sleeve - Women's

The Patagonia Women's Bandha Top will hold onto any yoga pose or climbing move without pushing back. This stretchy top has an uninhibited cut for allowing free-flowing movement in the studio or on the rocks.

SmartWool Microweight T-Shirt - Short-Sleeve - Women's

When you hike, your cotton tee gets sweat-soaked too easily, and your synthetic top starts to stink just moments after you put it on. But the Smartwool Women’s Microweight NTS Shirt is just right.

Arc'teryx Velox Comp V-Neck Shirt - Short-Sleeve - Women's

Freedom of movement makes or breaks a good running shirt. The Arcteryx Women's Velox Comp V-Neck Short-Sleeve Shirt uses gusseted sleeves to give you completely unrestricted arm motion.

Icebreaker GT150 Dash Crewe - Short-Sleeve - Women's

The Icebreaker Women’s Short-Sleeve GT150 Dash Crewe utilizes smooth seaming, venting, and merino fibers to moderate your temperature.

X-Bionic Energizer T-Shirt - Short-Sleeve - Women's

If workout clothes were computers, the X-Bionic Women's Energizer Performance T-Shirt would be a T3000.

X-Bionic Vitalizer T-Shirt - Short-Sleeve - Women's

For strictly no-fuss performance, look to the über-high-tech X-Bionic Women's Vitalizer X-Shirt.

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

The Columbia Women's Omni-Dry Mountain Tech Short-Sleeve T-Shirt takes on anything from a summer hike to a winter ski trip thanks to fast-wicking, quick-drying performance.

Columbia Silver Ridge Stretch Shirt - Short-Sleeve - Women's

You’ll be cool, calm, and collected even in the midday sun when you’re wearing the Women’s Columbia Silver Ridge Short-Sleeve Shirt.

Columbia Silver Ridge Knit Top - Short-Sleeve - Women's

Whether you’re heading to the gym or out on the trails, the Columbia Women’s Silver Ridge Short-Sleeve Shirt for Women delivers the technical performance you need from an active tee.

The North Face Velocitee Crew - Short-Sleeve - Women's

The North Face Women’s Velocitee Short-Sleeve Crew was born to run.

Columbia Stash And Dash Top - Short-Sleeve - Women's

You don’t have to be a seasoned runner, hiker, or climber to reap the benefits of the Columbia Stash And Dash Short-Sleeve Top—just a woman who enjoys being outside.

The North Face Celestial T-Shirt - Short-Sleeve - Women's

When you wear The North Face Women’s Short-Sleeve Celestial T-Shirt during a long run or ride, you’ll come off the trail without being sweat-soaked or bad-smelling.

Columbia Trailhead Top - Short-Sleeve - Women's

The Columbia Women’s Trailhead Short-Sleeve Top is ideal for a high-noon trail run, but the contrast-stitched seam lines give it figure-slimming, flattering style points for off-the-trail, too.

Columbia Psych To Hike Shirt - Short-Sleeve - Women's

You love the look of a short-sleeve button up, and the Columbia Women's Psych to Hike Short-Sleeve Shirt offers this look plus wicking fabric to keep you comfortably dry.

Icebreaker SuperFine 150 Tech T-Shirt Lite - Short-Sleeve - Women's

Icebreaker made the Women's Superfine150 Tech T Lite Short-Sleeve Shirt from super lightweight merino wool that feels tissue-soft and airy like cotton in the heat.

Mountain Hardwear Wicked Lite T-Shirt - Short-Sleeve - Women's

Feel as free as the wind blows when you sport the Mountain Hardwear Women’s Wicked Lite Short-Sleeve T-Shirt. This lightweight T-shirt’s feminine silhouette and moisture-wicking fabric combines fashion and function to make one versatile base layer.

Carhartt Work-Dry T-Shirt - Short-Sleeve - Women's

Whether you find your bliss in the mountains, or even in the garden, the Carhartt Women’s Work-Dry Short-Sleeve T-Shirt delivers moisture-wicking smooth comfort for active lifestyles.

Ex Officio ExO Dri Pointelle Scoop Top - Short-Sleeve - Women's

The Ex Officio Women’s ExO Dri Pointelle Short-Sleeve Scoop Top brings new versatility to your outfit. The Pointelle’s dri-release fabric feels soft against your skin and dries quickly when you’re traveling in warm weather or fitting in a hike with friends.

Icebreaker GT150 Dash 1/4-Zip Top - Short-Sleeve - Women's

It’s a beautiful fall day—not too hot, not yet cold. Pull on the Icebreaker Women’s GT150 Dash ¼-Zip Top and a pair of running shorts and head outside.

Ex Officio Pointelle Henley - Cap-Sleeve - Women's

When your friends and fellow travelers see you wearing the Ex Officio Women’s Cap-Sleeve Pointelle Henley, they just see a cute top—they don’t realize they’re also looking at a high-performance technical garment.

The North Face Ruckus Angel Crew Shirt - Short-Sleeve - Women's

Wear The North Face Ruckus Angel Women’s Short-Sleeve Crew Shirt for a sun-exposed midday hike.

Pearl Izumi InfinT Top - Cap-Sleeve - Women's

Pearl Izumi used techy Elite Transfer fabric with quick-drying bamboo carbon yarn to enhance the Women’s InfiniT Top’s performance.

Under Armour Catalyst T-Shirt - Short-Sleeve - Women's

Put your trash to work for you when you pull on the Under Armour Women's Catalyst T-Shirt.

Under Armour UA Heatgear T-Shirt - Short-Sleeve - Women's

Under Armour made the Women’s UA Heatgear T-Shirt with a long silhouette and anti-odor protection so you don’t have to spend half of your workout tugging your shirt down and the other half worrying about how sweaty you smell.

Pearl Izumi Aurora Top - Short-Sleeve - Women's

For a warm day of running along the trail, pull on your Pearl Izumi Women’s Aurora Top, and know that you’ll stay dry and keep trash out of the landfill.

Roxy Athletix I Heart Sport Top - Short-Sleeve - Women's

When you sweat in your cotton tee, it takes forever to dry and you end up getting chilled during your cool-down. Grab into the Roxy Athletix I Heart Sport Top.

Sugoi Carbon Shirt - Short-Sleeve - Women's

Sugoi Ready Shirt - Short-Sleeve - Women's

The Sugoi Women's Ready Short-Sleeve Shirt offers a simple, lightweight, breathable option for any day that involves working up a sweat

Patagonia Capilene 1 Graphic Performance T-Shirt - Short-Sleeve - Women's

Patagonia adds a new look to their base-layer tops with the sublimated design on the Women's Capilene 1 Graphic Performance Short-Sleeve T-Shirt.

Arc'teryx Velox Zip Neck Top - Short-Sleeve - Women's

Since running naked can get you in trouble, Arc’teryx designed the Women’s Velox Zip Neck Short-Sleeve Top so you can enjoy the next best thing.

Ibex Peak Sport Half-Zip Shirt - Short-Sleeve - Women's

You’re on a backpacking trip. When the sun has yet to warm the trail, the Ibex Peak Sport Half-Zip Shirt acts as an insulating layer under your fleece.

Backcountry.com Merino Crew Shirt - Short-Sleeve - Women's

The Backcountry.com Women's Merino Crew Shirt offers all the softness and natural, performance-enhancing qualities of New Zealand Merino wool, without the flight-to-New-Zealand price.

Patagonia Capilene 1 T-Shirt - Short-Sleeve - Women's

The lightweight fabric of the Patagonia Women's Capilene 1 Short-Sleeve T-Shirt helps you stay cool during high-output pursuits in hot weather.

Backcountry.com Cocona Shirt - Short-Sleeve - Women's

If standard polypro’s ability to go from clean to funky amazes and disgusts you, then check out the odor-negating Backcountry.com Women’s Cocona Shirt and put an end to your performance shirt’s zero-to-funky record reign.

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

CW-X built supportive bands into the Women’s Short-Sleeve VersatX Web Top to help you maintain proper posture, balance, and efficiency while tearing up the pavement in your running shoes.

SmartWool Ewenify2 Shirt - Short-Sleeve - Women's

Active fit, naturally odor-blocking, moisture-managing wool fabric, and a room-to-breathe V-neck? Sounds like the Smartwool Women’s Ewenify2 Shirt.

Marmot Shasta Shirt - Short-Sleeve - Women's

The Marmot Women's Shasta Short-Sleeve Shirt uses a combination of quick drying nylon and odor-fighting Cocona polyester to provide maximum technical performance.

Marmot Cascade Shirt - Short-Sleeve - Women's

Your wine glass is half-full, your box of unpaid bills is half-empty, and the Marmot Women's Cascade Short-Sleeve Shirt is half recycled-polyester.

Norrøna /29 LW Hooded Shirt - Short Sleeve - Women's

The Norrona Women’s /29 LW Hooded Short-Sleeve Shirt combines technical features with a casual style fitting for a hike with friends or errands in town.