My local Costco had the Kirkland signature men’s performance pant in stock a couple of weeks ago. I had purchased a pair last year and have really liked them so I got the black to go with my gray pair.
For me these are very similar to the Lululemon ABC trouser. Probably 90%+ similar and way less expensive. $20 vs over $120. It’s a chino style pant made of synthetic fabric that has a little bit of stretch to it. The Costco pair is slightly looser in the thigh which I like. The fabric seems to resist stains and dry fairly quickly. It also comes in a jeans style where the back pockets are sewn on externally vs the slit opening. Those are called the commuter pants.
They would both make nice gifts for the holidays.