Women's Smartwool Classic All-Season Merino Long Sleeve Base Layer - SW016912-545 Gear - Lightweight construction and strategic

- Lightweight construction and strategic protective cushioning help reduce hot spots and keep feet cool during activity

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COOL WEATHER RUNNING

There’s no telling how fast Hightail (and your speed-racer-self) can go

- Race widget: Get ready for your next race - whether it's a 10K or marathon - with training tips

Women's Smartwool Classic All-Season Merino Long Sleeve Base Layer - SW016912-545 Gear - Lightweight construction and strategicAn all season favorite, the Women's Classic All Season Merino Base Layer Long Sleeve can be sported as a base layer in the fall or summer when it's time to go backpacking. This base layer features Core Spun technologywhich is Merino wrapped around a nylon core for added durability while still keeping the comfort of ultra soft, responsibly sourced Merino next to skin. Our Raglan sleeves eliminate shoulder seams for perfect comfort under a pack, and