2026 Men's Classic Thermal Merino Bottom

Men's Classic Thermal Merino Bottom by Smartwool

Elevate your outdoor experience with the Smartwool Men's Classic Thermal Merino Bottom. Re-engineered for an optimized fit and superior performance, this isn't just a base layer—it's your foundation for unwavering comfort and peak performance, no matter the adventure.

Crafted from 100% pure Merino wool, these bottoms are designed to keep you at your best. Imagine enhanced thermoregulation that adapts to your body, exceptional breathability that prevents overheating, and natural odor resistance that keeps you feeling fresh all day. This is the warmest-weight Merino we offer, ensuring you stay incredibly warm and comfortable whether you're carving down slopes, hitting the trails, or exploring the backcountry. Focus on the journey, not your gear.

• Experience a sleek, comfortable fit that moves with you, designed to look as good as it feels.
• Enjoy the ultimate in natural performance: our 100% Merino wool interlock knit fabric provides unparalleled comfort, keeps you breathing easy, perfectly regulates your temperature, and resists odors.
• Benefit from an updated fit that not only performs better but also enhances your overall look.
• Discover ultimate comfort with a Merino-covered elastic interior waistband and a traditional fly design, ensuring a perfect, secure fit.
• Move freely without distraction thanks to flatlock seam construction, specifically engineered to eliminate chafing for long-lasting comfort.
• Achieve the ideal fit with a 30" (76 cm) inseam (Size M).
• Trust in superior quality: proudly knit in Vietnam with 100% Merino Wool.
• Feel the difference of lightweight warmth, weighing only 228 g (8.04 oz).

The Men's Classic Thermal Merino Bottom embodies Smartwool's dedication to innovative design and uncompromising quality. It's more than just a layer; it's your essential partner for staying warm, comfortable, and dominant in any outdoor pursuit.