Designed for lower output activities in cool temperatures, the women's Arc'teryx Rho Lightweight Hoodie base layer top is moisture-wicking, quick-drying, breathable and seriously soft.

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Comfort starts with your base layer. Made for wicking and warmth on low-output days, the women's Arc'teryx Rho Lightweight zip-neck base layer top feels supersoft, moves with you and layers easily.

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Skiing, backpacking or climbing, the Arc'teryx Rho Wool Long-Sleeve Crew women's base layer top is extremely versatile. It's fitted for easy layering, while stretch and articulation free up movement.

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Made with a textured knit with peached finish for first-layer warmth, the Saxx Roast Master Midweight base layer bottoms keep you warm whether you're carving turns or dodging snowballs.

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With beautifully detailed patterning and a soft merino wool fabrication, Kari Traa Rose base layer bottoms go beyond basic and are perfect for cold-weather activities.

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Knit with a Nordic-inspired floral design, the women's Kari Traa Rose half-zip base layer top is made from insulating merino wool for next-to-skin comfort, natural odor-resistance and breathability.

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Made from lightweight fleece that's brushed on both sides, the kids' Odlo Royale half-zip mid layer has a high collar with half-length zipper so they can either seal warmth in or vent it as needed.

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Built to support you through the most gravity-defying poses, the Beyond Yoga SD Lift Your Spirits bra keeps your flow distraction-free and your styling on point when you're hitting the mat.

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Your next-to-skin layers should always be extra comfy, which is why Smartwool makes the Seamless Racerback bra. A comfortable seamless merino wool interior combines with an outer designed for support.

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No more itchy seams and stifling fabric. The Smartwool Seamless Strappy bra feels is here to help you perform comfortably with engineered knit cups for shape, lift and hold during low-impact activity.

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Pair the women's PEARL iZUMi Select bike liner shorts with your favorite overshorts and take off with the wind at your back. They offer the comfort of bike shorts with the breathability of liners.

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Now you don't have to decide between the comfort of traditional bike shorts or the added breathability of a liner. The PEARL iZUMi Select liner shorts are outfitted with a high-quality chamois.

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Crafted with high-output activities and travel in mind, the men's Patagonia Sender boxer briefs offer the moisture-wicking power and cool feel of recycled nylon blended with stretch micromesh.

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Whether under your hiking kit or just under jeans around town, the women's REI Co-op Silk bottoms make a great foundation as temps start dropping.

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