Base Layer Bottoms

Our Kids' Classic Thermal Merino Base Layer Bottom uses our super-soft interlocking knit—perfect for layering in cool conditions and great for wearing alone on a mild day. Now your kids can be as warm, dry, and comfortable as you are. In your Smartwool® base layers. Features: Our slim fit is intended to follow the contours of the body Merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance Merino-covered elastic waistband adds comfort Flatlock seam construction designed to minimize chafing 100% Merino Wool. Exclusive of Decoration.

We've updated our Men's Classic Thermal Merino Base Layer Bottom to bring you a better fitting, more functional tight. The technical benefits of 100% Merino wool will help you keep your game at a high level for longer. And our warmest-weight wool fabric will help keep you warm and comfortable as you ski, run, and hike the day away. Features: Our slim fit is intended to follow the contours of the body 100% Merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation and odor resistance Flatlock seam construction designed to minimize chafing Fully functional fly Merino-lined elastic waistband designed for maximum comfort Size medium inseam: 30" (76 cm) 100% Merino Wool. Exclusive of Decoration.

100% Merino. 100% capable. Our Women's Classic Thermal Merino Base Layer Bottom is always ready for what's ahead and what's next. With a fit updated to improve functionality while enhancing aesthetics for a range of body shapes and a flatlock seam construction designed to help minimize chafing, comfort is never in question. Get yourself a pair or two of our best base layer pants and conquer the cold with more confidence than ever. Features: Our slim fit is intended to follow the contours of the body 100% Merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation and odor resistance Fitted with a mid-rise waist Merino-covered elastic waistband adds comfort Flatlock seam construction designed to minimize chafing Size medium inseam: 30.5" (77.5 cm) 100% Merino Wool. Exclusive of Decoration.

Made to move, the Cascade provides all the warmth of merino with a 4-way stretch. Cascade has been designed to keep its shape and last longer.

Made to move, the Cascade provides all the warmth of merino with a 4-way stretch. Cascade has been designed to keep its shape and last longer.

This base layer bottom delivers both warmth and comfort on the skin. The ultra-soft polyester and ethically sourced Merino wool blend retains heat while the ACCU-DRI® moisture-management technology ensures you stay dry when moving around. Perfect for a multitude of activities, this ankle-length bottom with elastic waistband will take you from the ski slopes, to morning runs, to a cold night by the campfire when you want additional coziness.

This base layer bottom delivers both warmth and comfort on the skin. The ultra-soft polyester and ethically sourced Merino wool blend retains heat while the ACCU-DRI® moisture-management technology ensures you stay dry when moving around. Perfect for a multitude of activities, this ankle-length bottom with elastic waistband will take you from the ski slopes, to morning runs, to a cold night by the campfire when you want additional coziness.

This base layer bottom delivers both warmth and comfort on the skin. The ultra-soft polyester and certified mulesing-free Merino wool blend retains heat while the ACCU-DRI® moisture-management technology ensures your child stays dry when active. Perfect for a multitude of activities, this ankle-length bottom with a large covered waistband provides comfort on the ski slopes, when playing in the snow, or simply when they want to be extra cozy.

Lightweight wool base layer bottoms for year-round layering performance, the soft and breathable 200 Oasis Leggings feature 100% merino wool jersey fabric.

Our best-selling base layer bottoms made from soft and breathable 100% merino wool jersey, the 200 Oasis Leggings With Fly are the perfect foundation for your cold-weather layering.

Our best-selling base layer bottoms made from soft and breathable 100% merino wool jersey, the 200 Oasis Leggings are the perfect foundation for your cold-weather layering.