Double bowline Double bowline A double bowline (or round turn bowline) is a type of loop knot. Instead of the single turn of the regular bowline, the double bowline uses a round turn. This forms a more secure loop than a standard bowline. Though called "double bowline" by Clifford Ashley, this name is also reasonably descriptive of a different knot: the bowline on a bight. Because of this ambiguity some sources differentiate by using one of the alternate names above. And at least one other source uses the name "double bowline" for a mid-line loop knot made by tying a basic bowline
Yosemite bowline a climber's harness, the figure-of-eight follow through is the most common choice because it is more widely known and more easily checked. "The Mountaineering Handbook" is one of the few texts that suggest that the Yosemite bowline is better for this purpose. Suggested benefits of the bowline include being easier to untie after loading or when wet and frozen, and being possible to tie-in with only one hand. Testing found it a strong knot for the purpose. It is recommended that any knot which is used to attach a rope to a safety harness is always finished with a stopper