Whatever outdoor pursuit you are involved in, dressing in layers is key to comfort and safety. Finaly you may need a shell for wind and rain protection. A water proof shell is an important article of clothing to carry when hiking. It can function as a rain and wind layer. Sweater Synthetics are very warm for their weight and bulk, they are also comfortable next to the skin.
Pants There are many options available.
Be sure to choose pants that are non-cotton and comfortable. For winter use or for mountaineering you should choose an insulating pant layer. Wool and synthetic knit gloves, like the ones pictured, are OK for summer. These have traction dots on the palm, which is key. Wearing a broad rimmed hat during the heat of summer is a good choice.