Ground mat - A ground mate is essential during the winter season. It insulates you from the cold ground that can pull the heat from your body, leaving you shivering and cold in the middle of the night. It also adds some comfort on hard terrain. It keeps you dry and keeps wind and bugs away. Hiking boots - Good footwear is important for obvious reasons.
Boots come in many variations and styles.
I recommend a boot that is comfortable, waterproof and breathable, and has a sold lug sole. Be sure to change socks regularly to reduce the chance of blisters. Never sleep in the same socks you have been hiking in all day. First Aid kit - Always have a good first aid kit available. This includes a pot, pan, cup and utensils.