Gloves provide protection from blisters, abrasions, cold and hot objects, and insects. General purpose gloves are a thin glove-liners — wool may be preferred around campfires — combined with a pair of leather gloves. Glove liners often provide enough dexterity while not fully exposing the hands to freezing conditions. Shoes with traction reduce the chance of slipping, causing an injury or death. Shoes that support the ankle may also prevent injury. Well-constructed, breathable, waterproof hiking boots are general-purpose hiking shoes. Mountaineering boots provide more specialized protection. Trainers, sandals, or moccasins are useful for easy walks and may be taken on extended hikes as backup, and to wear when fording streams and in the evening around camp. Waterproof gaiters are used in cold or wet conditions to protect the lower pants and upper part of the shoes, and reduce the amount of water, snow, and debris from entering boots and soaking into other fabrics. Brush chaps or pants for thick brush or thorns, and snake chaps or gaiters help protect the legs from snake bites.