The first time you can unlock this trophy is when you reach level 50 (this unlocks the 3rd tier of the contender suit) If your strugglin to reach level 50 just go to track central and search for a track called "xp for days" it's a track thats finishes as soon as it starts and the rinse and repeat progress is super quick as you can keep pressing the retry button and it keeps adding all your xp together. Hope this helps
Note- I already had the other 6 items unlocked in contender before I purchased the 3rd tier stuff, so if it doesn't pop you may have to buy all 9 items...