Smartwool Merino Sport 150 Brief Boxed

The briefs in question are crafted with a versatile fabric composition, blending 56% Merino Wool and 44% Polyester. This hybrid material provides the comfort of Merino and the durability of recycled polyester, with an added windproof front panel for increased protection.

Designed for outdoor adventuring, the slim-fit briefs are engineered to offer unrestricted movement and a slimming silhouette. The ultra-lightweight fabric features strategically placed mesh panels to enhance breathability, while the Merino wool lining regulates body temperature to keep the wearer cool in summer and warm in winter.

For optimal care, these briefs are machine washable on a gentle cycle, and should be washed with like colors. They are proudly made in the USA.

Highlighting the benefits of Merino wool, this natural fiber is thinner and softer than regular wool, making it comfortable to wear against the skin. Each Merino fiber efficiently transports moisture away as a vapor, wicking sweat to keep the wearer dry (as tested by the manufacturer).

Additional functional features include a minimum merrow seam design for superior durability and comfort, as well as a windproof front panel to increase protection during outdoor activities.

Complementing the briefs, the brand offers a range of versatile Merino-based base layers and socks for both men and women. The Classic Thermal Merino Base Layer Crew, Hike Classic Edition Light Cushion Crew Socks, and Women's Classic Thermal Merino Base Layer options provide a cohesive layering system for warmth and performance.

The customer reviews for these products are overwhelmingly positive, with an average rating of 4.7 out of 5 stars across multiple product lines. Customers highlight the exceptional comfort, breathability, and durability of the Merino-blend fabrics, as well as the thoughtful design features that cater to the needs of outdoor enthusiasts.

In summary, this versatile underwear and base layer collection seamlessly blends the natural benefits of Merino wool with the practical performance of recycled polyester, delivering a comfortable, durable, and functional solution for active lifestyles.

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