Black Diamond Dynex Runner

Dynex is significantly lighter and more abrasion-resistant than nylon. It also absorbs almost no water, which prevents the runner from freezing stiff or becoming heavy in alpine, snowy, or icy conditions.

While they excel in alpine and trad climbing due to their low weight, they are perfectly capable for sport climbing. However, keep in mind that Dynex has less energy absorption than nylon, so they are best used for extending placements rather than as a primary shock-absorbing element.

The 60cm length is the standard for most climbers to extend gear placements and reduce rope drag. If you are building complex anchors or slinging large natural features, you may want to carry a few longer runners (120cm or 240cm) to keep your system organized.

The 10mm width is quite thin, which helps save weight and bulk on your harness. While it might feel different than wider nylon slings, the material is stiff enough to handle easily, and the color-coding makes it simple to grab the right length quickly.

Yes, they are strong enough for anchor building. Just be aware that because Dynex is a low-stretch material, you should ensure your anchor system is equalized properly to distribute forces evenly across all points.