Black Diamond has been on the outdoors scene for decades (first forming out of the trunk of Yvon Chouinard’s car). There have been several evolutions of the company, and they are now in the technical apparel game.
Why is this of interest to anglers? First, fly fishing apparel has historically borrowed heavily from the advances made in other outdoor industries. Advances in climbing or skiing have made their way to fly fishing. Second, Black Diamond is already making some cool gear. Just because “fly fishing” doesn’t appear in the product description doesn’t mean it isn’t a great piece of relevant gear.