If you want 12-15 oz. per pair, you're looking at carbon fiber. Don't get anti-shock poles, either; all they do is make an annoying clicking noise at every step.

There are a number of trekking pole threads here. Check the "sticky" post at the top of "General Discussion" for how to search (be sure to change the time frame from 1 week to 1 year).
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May your trails be crooked, winding, lonesome, dangerous, leading to the most amazing view--E. Abbey