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Lisa Jhung1. Brooks Cascadia Thermal Vest, $110
Insulated jackets and vests rule the outerwear trend for 2017/18, aiming to keep runners warm with breathable, insulated paneling that can withstand a little winter moisture. The Brooks Cascadia Thermal Vest and Jacket ($160) for men and women keeps your core warm with Poly-Fil insulation. Brooksrunning.com
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Lisa Jhung2. The North Face Flight Touji Jacket, $150
“Touji” means “winter solstice” in Japanese, and this jacket utilizes Primaloft insulation panels and a breathable fleece back and sides to help runners embrace the coldest, shortest running days of the year. (The North Face Women’s Flight Touji Vest is $120). Thenorthface.com
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Lisa Jhung3. La Sportiva Task Hybrid, $139
This jacket combines a nylon/polyester ripstop with Primaloft insulation and polyester lining to wick sweat and breathe well while keeping runners (and other outdoor winter athletes) comfortable—not too cold, not too hot—in cold temps. amazon.com
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Lisa Jhung4. Smartwool PhD Light Longsleeve, $85
This base layer top aims to provide a high level of breathability without sacrificing necessary warmth. Smartwool’s body mapping technology (“mapping” highest sweat zones for men and women) places ultralight mesh in strategic areas. amazon.com
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Lisa Jhung5. Patagonia Slope Runner, $69
Patagonia’s Slope Runner long-sleeved top (there’s also a short-sleeved version, $59) uses gender-specific body mapping to add ventilation to its polyester/spandex blend. Patagonia.com
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Lisa Jhung6. Craft Core Seamless Top ($60), Tights ($50)
These Core Seamless baselayers from Craft feature interesting cut-outs to both ventilate and make the most of trendy moto styling. These baselayers combine polyester, polyamide and elastane—the same combo of Craft’s award-winning Active Comfort Baselayers. Craftsports.us
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Lisa Jhung7. Salomon 3-in-1 Anorak Combi, $175
Layering takes on a couple different forms in 2017-18. This Salomon set-up combines a windproof, long vest with a short, waterproof over-jacket for a super-lightweight, Euro-styled, race-inspired system. Salomonrunning.com
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Lisa Jhung 8. Outdoor Research Shift Up Half-Zip Hoodie, $120
Lightweight, thin midlayers do a great job of regulating temperature in lieu of shell jackets when it’s cold and dry, and this hoodie places soft, sweat-wicking fabric on the interior to maximize comfort. Outdoorresearch.com
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Lisa Jhung9. Icebreaker Rush Hoodie ($160) and Full-Zip ($190)
Nothing feels quite as good in the winter as a wool blend, and these pieces add a super-functional midlayer to your running kit. They wear like a second shirt, adding warmth and breathability over a baselayer, and look (and feel) good enough to be worn as casual wear. (Men’s versions are called the Incline Hoodie and Full-Zip.) Icebreaker.com
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Lisa Jhung10. deFunk it, $11.49/16 oz. bottle (22 laundry loads)
If you’re spending money on high-end running apparel, you want it to last. This Active Wash High Performance Detergent promises to remove dirt and odor without chemicals to extend the life of your gear. amazon.com

Lisa Jhung writes about all things adventure and is the author of Running That Doesn't Suck: How To Love Running (Even If You Think You Hate It) and Trailhead: The Dirt on All Things Trail Running.
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