Wear cotton clothes, a hat, sunglasses, waterproof sunscreen-15 spf, wool or acrylic SOCKS are best even in summer, smoother fibers prevent blisters and bring 1 or 2 liters of water.
*Also, for added summer comfort, (this really works), dust yourself all over with corn starch. It won't attract insects and the corn starch acts as an absorbing agent pulling sweat away from your skin making you feel dryer. Use it everywhere.
Wear layered clothes that you can remove if you get hot and bring 1 liter of water.
Wool or acrylic is best- i.e. Drylete by Hind is a moisture transfer management garment. Made from 60% polyester,30% Nylon, 10% spandex. Excellent way to keep dry and warm underneath in the winter to prevent hypothermia.
Acrylic, Polyester fleece or wool layers are best with outer wind shell coat.
If Icy conditions exist:
Anti-skid detachable safety soles called "ICER'S" are available at Shoppers home health care outlets.
They are excellent to have throughout the winter months. I use them daily when conditions are icy.