DONT listen to all that 'If you are good enough, the sponsors will come to you'-crap. Its not true. (Unless you're REALLY good) You have to be active in the sport. Do competitions, do a whole season in the mountains, get a small job were you meet alot of skiers, go to different bars and meet people and become good friends with as many people in the community as possible!
Then if you're lucky, you'll earn a reputation. And you can start looking for possible sponsors... The minute people start to notice you and respect you, is the minute you're worth something to the sponsors... How they notice you doesn't really matter... If its skiing or just being a nice skier... No matter...
If the sponsors feel, that you can represent their product in a respecful manner, and people will take your word for it, when you tell them that those them 'Oaleys' or 'Ossignol'-skis your on, are just perfect - they'll sponsor you.
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f*ck Bush