We've all heard it before - wear layers. Proper layering can make all the difference in comfort, follow these tips and you'll be ready for any conditions.
The Wicking Layer. If there is one place to splurge on layers, this is it. Nice polyester or wool undergarments which pull moisture away from the body and allow it to evaporate keep you dry and help ward off chills once you stop.
Insulating Layers. You have more flexibility here in terms of what types of clothing to wear but be mindful of packing unnecessary weight. Although cotton works well for insulating, it can be heavy and performs poorly when wet -- again, it's probably best to stick to a polyester or wool blend.
Water and Windproof Layers. Gore-tex used to be the standard-bearer for its excellent wind and waterproofing properties. Nowadays, manufacturuers have a variety of options to choose from. Extra zippers and vents are a useful feature.
Now that you're layered, it's time to test it out. If you are too hot standing still you need to strip some layers (likely insulating) or adjust your ventilation openings.