I started out wearing and climbing in the Zion stretch pant. Loved em so much I decided to try another style, The Brion. These are a little more snug than the Zion but not skin tight. Imo, the perfect fit.These are simple pants with a clean look. I bought multiple pairs and switch between these and the Zion. They basically make up most of my wardrobe now.The fabric has a nice stretch to it which works well for yoga and climbing. At first glance I figured these wouldn't hold up to climbing but I gave em a shot.Long story short I had about an hour long battle with a boulder route at a brand new gym in town. For those who have spent any time climbing new holds you know they can have an almost sandpaper texture. Anyways, there was a move that continued to rub the same spot on my inner calf. I remember thinking at the gym that this pair would probably be designated "only climbing" since they would likely be shredded. I checked out the pants later on. Other than chalk the fabric looked great and held up really well. Don't be afraid to climb hard in these!