Day temperatures vary drastically from night temperatures in many locations; therefore, it’s important to pack layers of clothing so you’re comfortable.
Depending on the region I’m in, I pack 4 main layers with me; a baselayer, 2 mid-layers, and a water and windproof “shell” outer layer.
Base Layer
A base layer is the layer closest to your body. It’s important that this layer is made of wicking materials to move moisture away from your body while keeping your skin dry. Generally, base layers are made of synthetic materials including polyester and nylon or merino wool and silk.
Base layers come in different thicknesses or weights. The thicker or heavier, the warmer they are rated.
In warmer regions, a synthetic tank top should suffice, however, when it’s cooler a long sleeve is a great option and also provides UPF sun protection, even in hot regions. Mountain Hardwa