Hiking (walking) boots are footwear specifically designed for protecting the feet and ankles during outdoor walking activities such as hiking. They are one of the most important items of hiking gear, since their quality and durability can determine a hiker's ability to walk long distances without injury. Hiking boots are constructed to provide comfort for walking considerable distance over rough terrain. Boots that protect the hiker's feet and heel are recommended. Hiking boots give ankle support and are fairly stiff. A less popular alternative is to use light trainers with thin soles. Footwear should be neither too loose nor too tight, to help prevent blisters and sore feet. Hiking socks that wick sweat from the feet, provide warmth, and cushion the feet are recommended and a thin, inner sock may also help. Most hiking boots are also designed for other outdoor activities such as backpacking, climbing, mountaineering, and hunting.