Why do cactus's have spikes?
to prevent it from being eaten by predators.
They are not different things. Soft spikes are the spikes on the bottom of most golf shoes. There are two types of spikes, soft spikes (which are as standard with 99% of golf shows) and metal spikes - which are a single metal stud. Metal spikes were common many years ago, but soft spikes have revolutionised the industry, they provide more grip and are not as taxing on the green.
the best spikes for hurdles are sprinting spikes, there are some pretty fancy specific expensive ones that the professionals use, but the sprinting spikes you can get at any good sport shop. :) ^^^ that's wrong, for hurdling you want spikes with a heel. A heel much smaller than jumping spikes but definitely bigger than the non-existent one on regular sprinting spikes