If I could only choose one style of running shoe to wear for the rest of my life it would be the Nike Air Zoom Pegasus 36 Running Shoe ($120). I've been wearing the Nike Pegasus since my collegiate track and field days — nine years to be exact — and I still love it. I can do sprints on the track in it and not feel weighed down. When I was training for my first half-marathon this was my go-to shoe because of how supportive and lightweight it is. It's also comfortable and stylish enough to run errands or hang out in.