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The Pursuit Long Sleeve Merino Shirt is the ultralight, all-season base layer you've been looking for. Designed for versatility, it's our lightest base layer yet and a great summer sun shirt. Our Pursuit collection features Axio, a Japanese yarn spinning technology that creates ultralight, stretchy fabric that's durable enough for mountain adventures. Lighter than our midweight Aspect base layers, the Pursuit long sleeve will be what you grab for spring skiing and long summer hikes. With a high Merino wool content, it naturally resists odor, wicks moisture and regulates temperature for all-day comfort.
About Axio™
Axio is a patented Japanese yarn spinning technique that spins a polyester filament in a spiral inside soft Merino wool to make the Merino wool stronger and lighter. This results in a more durable, higher performing fabric while keeping the Merino wool content high. Because it’s still mostly Merino wool, our Pursuit collection is extremely comfortable and odor resistant. It’s also anti-pilling, less worn out after many washes and less likely to shrink.
Care: Machine wash on warm or cold, hang dry. Do not bleach or dry clean. Iron on low wool setting. Learn more.
This item has updated women's sizing. Check the new size guide to get the right fit.
*NOTE: Our spring/summer 2025 collection has new sizing for women. Each product page has the correct size chart linked from it, and all products using the new sizing have a note in the Sizing/Fit tab.
Finding the right size. The measurements below refer to body size, not garment dimensions (with the exception of the specs marked actual garment measurements). If you're between sizes, either size down for a tighter fit or up for a looser fit.
| Our Size | Numeric Size | Chest | Waist | Hip |
| 0 |
32.5" |
25.5" |
35" | |
| XS | 2 |
33.5" |
26.5" |
36" |
| 4 | 34.5" |
27.5" |
37" | |
| S | 6 | 35.5" |
28.5" |
38" |
| 8 | 36.5" | 29.5" | 39" | |
| M | 10 | 37.5" | 30.5" | 40" |
| 12 | 39" | 32" | 41.5" | |
| L | 14 | 40.5" | 33.5" | 43" |
| 16 | 42" | 35" | 44.5" | |
| XL | 18 | 43.5" | 36.5" | 46" |
HOW TO MEASURE:
