A great ski outfit starts with a warm and breathable base layer.

We tested the best men's base layers of 2025 with options for every budget. Top picks include Ibex, Patagonia, SmartWool, and more.

If you’re part of the “always freezing” crowd — especially if you live in a colder climate — warm winter base layers are a wardrobe must, from thermal undershirts and long johns to cozy socks. Many of ...

There is an art to layering, which if you ask me, is an essential for fall and winter. As a woman who ... And then on days when I need a base layer that is a seamless, flattering foundation ...

The Spatz Basez Extreme is no doubt a very capable deep winter base layer, but its real strength is how it allows you to ...

Finding the right base layers to get you through winter will depend on factors such as your preferred fit and style, budget, local weather conditions and the activities you plan to engage in.

When it comes to base layers (and other winter essentials, like wool socks), the experts are unanimous: merino, merino, merino. This natural fiber is one of the best materials for trapping warmth.

The key to fuelling your winter days ... steadier mountaineering days and ski touring. It also has a long shelf life when kept in an airtight container. These are extremely versatile and fun to make, ...