Shop at a large, reputable outdoor gear store - a place where the sales staff is likely to be knowledgeable and helpful, and one that has a reasonable guarantee and return policy.
Step2
Expect to spend anywhere from $60 to over $100 on quality trekking poles.
Step3
Look for poles that feature shock-absorption. They're more expensive but easier on the wrists.
Step4
Look for adjustability: Pole length should adjust easily so that you can shorten or lengthen the poles according to terrain, and so that people of different heights can use them.
Step5
Determine that the poles come with snow baskets if the recipient will be using them for snowshoeing or telemarking.
Step6
Make sure the poles are returnable or exchangeable in case adjustments need to be made.