Smartwool

The updated fit of the Men's Classic Thermal Merino Base Layer 1/4 Zip improves functionality while also enhancing aesthetics. It will help keep you comfortable and temperature regulated as you enjoy high-intensity skiing, hiking, running, and more.

Meet the improved Men's Classic Thermal Merino Base Layer Crew. Shoulder panels eliminate top shoulder seams and a flatlock seam construction helps prevent chafing. Add one of the best base layers to your wardrobe and experience the difference.

We've updated our Men's Classic Thermal Merino Base Layer Bottom to bring you a better fitting, more functional tight.

The Women's Classic Thermal Merino Base Layer Pattern Bottom is always ready for what's ahead. With a fit updated to improve functionality while enhancing aesthetics and a flatlock seam construction designed to avoid chafing, comfort is never in question.

Meet the improved Women's Classic Thermal Merino Base Layer Crew. The addition of shoulder panels and its flatlock seam construction helps avoid chafing and increases comfort. Add one of the best base layers to your wardrobe and experience the difference.

The cold has met its match. Take on the chilly temperatures with the Women's Run Cold Weather Targeted Cushion Crew Socks. These high-performing women's cold weather run socks will warm up any icy run.

This sock is designed to help take care of your feet and elevate every hike.

Formerly known as PhD® Outdoor, Smartwool updated their best hike socks to include more sustainable materials with the addition of recycled nylon, improved durability, updated mesh zones, and an even more perfect fit.

Whether you run on a treadmill, on a sidewalk, on a track, or on a trail, your feet should stay as comfortable as possible. These low ankle socks are built to help with that.

Some days, you want minimal coverage but optimal warmth. That is where the Merino Sport Fleece Wind Training Headband comes into play.

For a brisk morning walk on a trail or just to the coffee shop, the Cozy Mitten keeps fingers warm by keeping them together. The cushion knit and terry loop interior make these mittens extra comfortable and warm.

These gloves go from accessory to necessary the instant you put them on.