Trail Running: ClothesOver the past few years, trail running has become a popular alternative to running on busy roads or on the treadmill. It combines the scenery and terrain of a beautiful hike with the cardiovascular endurance of road running. Although it is possible to start on a few easy trail runs with your normal running gear, eventually you will need to invest in a key key items to wear while on the trails. Here are some of the most important things you will need to wear when trail running.Trail Running ShoesMost trail runners will switch from road shoes to trail shoes eventually. Trail shoes are sturdier, often weigh slightly more than road shoes and provide more traction. They also have ridges or grooves to help you avoid slips on wet rocks or slippery trails. This is by far the most important thing to wear when trail running.Tall Dark SocksAlthough low-cut white socks are typical for runners, trail running requires something a little different. Dark socks will prevent dirt from showing and are a better alternative than white socks. Instead of wearing low socks, trail runners weartaller socks that come up above the ankle to keep dirt and debris out of their shoes.Waterproof JacketThe conditions on a trail can change quickly, going from hot to cold or rainy in just a matter of minutes. Since you may be isolated on the trail and have little cover or protection, wearing a waterproof jacket is vital. Bring along a thin one and tie it around your waist if you don't need it throughout the run.Hydration EquipmentSince trail runners don't have the option of stopping at a convenience store or a water fountain for a drink, they need to bring along their own fluids to stay hydrated. Many runners wear a hydration backpack or even a fuelbelt filled with water bottles while on the trails.Use this guide to determine what to wear on your next trail running adventure.