Not really good at preventing blisters. I've used them on multiple pairs of work shoes (boots and shoes) and I'm still suffering by the end of my work week (a range between 50-70 hours a week)
If you do decide to buy, make sure they are the right size. The ones I have are tight on the ankle and cause minor discomfort

Best hiking socks we have found. We have multiple pairs. We do not use these for freezing temperature hiking, but for cool to hot weather hiking inside regular Goretex mid-height hiking boots with a Vibram sole -- not modified running shoes. Thus far, we have had no blisters or irritated skin in properly fitted boots with Superfeet hiking insoles carrying moderate loads for day hikes. These are not wool socks, and thus wick perspiration, do not get soaked and sticky from perspiration, do not "itch", and have a long useful working life.

I had high expectations of this product because it was widely recommended, but I was very disappointed in my purchase for several reasons. First, the products came badly packaged. I ordered 4 pairs of socks, and 3 of them came in a bundle while the fourth pair was separate--I had to double check my order to make sure there was not a mistake because the separate packaging appeared so strange. Second, the material was polyester. For such expensive socks I expected higher quality material. Third and most importantly, the fabric felt thin and flimsy. I purchased these socks for long-distance running and I'm almost too scared to put them on out of fear that they will not hold up for a single run.

I found socks, insoles and boots that don't produce blisters, but I tried Wrightsock on a recommendation. They worked as promised, not creating even a hot spot on a 10-mile hike. I thought I felt a little slippage from the extra layer, but it could be psychological. They are still darn good quality socks.

My daughter plays sports… soccer and lacrosse .
Always got blisters. Not anymore with Wrightsock. Coolmesh II Crew Anti Blister System?