These slings highest strength rating of all 1″ tubular slings available! Manufactured from BlueWater Ropes' premium 1″ Climb-Spec nylon tubular webbing. We stitch these slings with Dyneema bar tacks for superior performance and longevity in the field. Why do others not use Dyneema thread? It is expensive and difficult to sew but the end result is well worth the effort. CE and UIAA certified. Manufactured in the U.S.A. from Domestic and Globally sourced raw materials.