Single layers can have a bigger impact than you think. The women's Mountain Hardwear AirMesh half-zip pullover's lightweight mesh/fleece fabric absorbs sweat, dries quickly and insulates in the cold.

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A single layer can have a bigger impact than you think. The men's Mountain Hardwear Air Mesh long-sleeve crew top may look unassuming, but once you have it on, you won't need anything else.

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Offering a different take on the classic Toad&Co Airbrush Shirt, the women's Toad&Co Airbrush tunic has a ventilating weave that's held together by 100% organically grown cotton yarns.

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Keep it long with leggings or tie the front over some high-waisted jeans—the prAna Alfie flannel shirt offers style that embraces iconic Americana and feels like a dream come true.

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For marathon belays in the blazing sun, the Black Diamond Alpenglow hoodie offers a break from the rays with sun-protective fabric and BD.cool mineral-based, in-fiber cooling technology.

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For long, exposed approaches, summit naps and sunny sessions at the crag, the women's Black Diamond Alpenglow hoodie keeps you covered when sunscreen just won't cut it.

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Offering coverage on desert multi-pitches, high-alpine approaches and hot crag sessions, the men's Black Diamond Alpenglow long-sleeve crew shirt fends off sun, sweat and overheating.

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Whether you're heading out for a hike or hitting the gym, the women's prAna Alpenglow short-sleeve T-shirt has the sun-protective and moisture-wicking fabric to keep up with you, indoors or outside.

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Whether you're hitting the gym or heading out for a hike, the women's prAna Alpenglow tank top has the sun-protective and moisture-wicking fabric to keep up with you, indoors or outside.

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Soft and comfy enough for casual wear yet boasting moisture-wicking, sun-protective fabric for outdoor activities, the men's prAna Altitude Tracker Crew II top is ready for your everyday adventures.

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Lined in the torso with a comfortable, high-pile sherpa wool fleece, the men's Smartwool Anchor Line Sherpa shirt jacket is ready for those crisp, early fall days spent outside.

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Pull on the Marmot Anderson Lightweight flannel for fall hikes or brewery bike rides. The brushed fabric blends soft cotton and recycled polyester to help manage moisture by wicking and drying fast.

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The Flylow Anderson shirt helps minimize your wardrobe. You don't need 10 plaid button-ups—just this one, made with stretchy, breathable, quick-dry fabric you can work and ride without a change.

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No rash, no burns, no problems. The men's Quiksilver Angler Hooded 2 long-sleeve surf T-shirt shields you from sun and sand burns with a recycled surf fabric and built-in UPF 50 sun protection.

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