Where are you hiking?
What's your shelter?
I NEVER carry trekking poles.
To set up my shelter, I just keep my eyes open as evening camping time approaches. The perfect stick is out there!
My shelter is just a tarp that needs just one pole, about 4 feet long. I can ALWAYS find a stick on the side of the trail to use as my pole.
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I have some old tent poles that I use in the canyons of utah where finding a stick isn't that easy. I take three and they end up about four feet tall when connected. I work at an outdoor school, so we have a bin full of old broken tent parts, so it was easy for me to get 'em. They come in at 3.4 ounces.
I had to put a tiny piece of duct tape on one of 'em, because the clove hitch on the string would slide down the slick aluminum.
They are surprisingly pretty strong.