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Published September 21, 2026 11:22AM<\/p>\n<\/div>\n
I\u2019m not a natural fiber purist: I love thin, airy, sweat-wicking, quick-drying synthetic tanks and tees for hot summer running. But now that fall is approaching, I\u2019ve switched to tops made of natural fibers. Here\u2019s why.<\/p>\n
Tees made of fibers like Merino wool feel soft and downright cozy against my skin. On cool fall mornings, especially when my friends drag me out way too early for a run, at least I get to pull on a shirt that\u2019s as comfortable as pajamas or an old cotton T-shirt. It feels a lot better than pulling on a cold, waxy synthetic shirt at 6 a.m. The same soft hand keeps me comfy on fall evening runs when the sun sets early, the temperatures start dropping, and I\u2019m racing the rapidly approaching dark.<\/p>\n
These super-soft tees also have casual styling with minimal, if not absent, branding, and good-looking, subdued colors and textures. This allows me to put one on in the morning, wear it all day for work and errands, and not look like I\u2019m wearing running clothes. When I get a free window to run, I just change into running bottoms, grab my shoes, and go.<\/p>\n
Natural-fiber tees also, ahem, naturally regulate my body temperature. The crimped, coiled structure of a wool fiber traps air, which, in turn, traps my body\u2019s heat in cool weather. And because of the space between each tiny fiber, wool or wool-blend materials stay super breathable without losing their insulating properties.<\/p>\n
I\u2019ve found that when I wear a wool shirt on runs in 70-degree temperatures or higher (which still happens in the fall where I live in Boulder, CO), there is often a moment when I feel too warm, but that sensation is short-lived. Within a minute or two, the shirt transitions from trapping my body\u2019s heat to letting it escape. And when the shirt becomes wet with sweat, it\u2019s not a cold, clammy moisture. It stays comfortably matched to my body temperature, cooling without chilling and feels like a welcome, warm rainstorm on a hot day in Hawaii.<\/p>\n
Beyond their performance abilities, I love natural-fiber tees because they are better for the environment. I run trails to connect with nature. I need the trees, the rocks, and the creeks to add balance to whatever else I have going on in my life on any given day. Wearing running clothes that align with that perspective just feels better on an emotional level. Wool biodegrades; synthetics don\u2019t. Washing synthetic garments can release microplastics, and being a die-hard lover of the ocean, I hate knowing that.<\/p>\n
That said, a little bit of synthetic mixed in can be a good thing. Fibers like nylon, spandex, or Tencel add stretch, durability, and sweat-wicking to wool\u2014all highly valued properties in a running shirt.<\/p>\n
As for the odor-resistance of wool: Unless I\u2019m clueless, in serious denial, or my friends aren\u2019t as close as I think they are, managing body odor\u2014even on a long run\u2014isn\u2019t a top priority for me. No one has ever complained. However, I\u2019m not above wearing a shirt twice without washing it, and a wool shirt that doesn\u2019t hang on to even the slightest stink is a great thing.<\/p>\n
Here are three wool-blend tees that I love:<\/p>\n\n(Photo: Lisa Jhung)<\/figcaption><\/figure>\nWoolx Addie Tee<\/h2>\n The Woolx Addie Tee is made from 85% Australian Merino Wool, 12% Nylon, 3% Spandex, and is extremely stretchy horizontally (a little less so vertically). It does, however, recover quickly from stretching and keeps its shape. It\u2019s a thin 150g\/m\u00b2 wool blend and super breathable. The finished neckline gives this shirt a particularly casual look, but it works great on the trail. I\u2019ve taken this on everything from Rocky Mountain hut trips to European trains and trails.<\/p>\n<\/section>\n\n(Photo: Lisa Jhung)<\/figcaption><\/figure>\nIbex Paradox Short Sleeve Crewneck<\/h2>\n This 45% Merino wool, 45% Tencel, 10% nylon blend Ibex Paradox Short Sleeve Crewneck is the softest of the three tees I\u2019ve been wearing. I often wear this shirt all day just because it feels so comfy, but I also grab it for trail runs, and it handles the sweat with ease. This tee also uses 150g\/m\u00b2 fabric weight\u2014it\u2019s thin and breathable, but the fiber blend makes it cozy.<\/p>\n<\/section>\n\n(Photo: Lisa Jhung)<\/figcaption><\/figure>\nPatagonia Capilene Cool Merino Blend Shirt<\/h2>\n The Patagonia Capilene Cool Merino Blend Shirt is made from 65% Responsible Wool Standard-certified wool. The other 35% is recycled polyester jersey. This tee is the thinnest of the bunch, at 115-120g\/m\u00b2, but still regulates my body temperature whether I\u2019m feeling cold or hot. I like the active styling of the side notch and slightly dropped back hem, which adds mobility and modesty while giving the shirt an interesting look.<\/p>\n<\/section>\n<\/div>\n
Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"When the temperature drops, it\u2019s the perfect time to lean into cozy, environmentally friendly Merino. Warmth when it’s chilly, breathability when working hard and heating up\u2014wool excels at regulating my temperature on autumn runs. (Photo: Lisa Jhung) Published September 21, 2026 11:22AM I\u2019m not a natural fiber purist: I love thin, airy, sweat-wicking, quick-drying synthetic<\/p>\n","protected":false},"author":1,"featured_media":17454,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[],"class_list":["post-17453","post","type-post","status-publish","format-standard","has-post-thumbnail","category-wild-living"],"_links":{"self":[{"href":"https:\/\/wildgreenquest.com\/index.php?rest_route=\/wp\/v2\/posts\/17453","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wildgreenquest.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wildgreenquest.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wildgreenquest.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wildgreenquest.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=17453"}],"version-history":[{"count":0,"href":"https:\/\/wildgreenquest.com\/index.php?rest_route=\/wp\/v2\/posts\/17453\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wildgreenquest.com\/index.php?rest_route=\/wp\/v2\/media\/17454"}],"wp:attachment":[{"href":"https:\/\/wildgreenquest.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=17453"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wildgreenquest.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17453"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wildgreenquest.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}