When you want to take your training off-road, then your standard gym shoes might not be suitable as you'll end up slipping around. Trail running shoes offer better grip for uneven surfaces and here at GO Outdoors you'll find trail shoes from some of the best brands around such as Salomon, New Balance and Asics.
If you're planning on fell running through poor weather, keep an eye out for GORE-TEX Trail running shoes in the range as they offer superior waterproofing to standard shoes.