while these spikes seemed a little tight and small, they soon streched out to fit and are great for 800-3200 meter track races as well as 5-10 k races.they don't offer as much support as trainers or running shoes but i have found that the shay XC line offer more support than other spikes I have worn.<br />these spikes are also very versatile as you can remove the spikes and still use them to participate in indoor meets and races. the shoes are also very durable and easily washed if they get muddy.