Since you're not really getting a straight answer and there's post-farmers on here, I'll give you a to-the-point response:
If you have proof of being in possession of Winter Gear and that it was taken from a hacker, you can easily make a Troubleshooting thread or PM an admin with the proof. If you don't have the proof, you're out of luck. It should be reasonable for you to get your items back if you were telling the truth.