The Carrick bend, also known as the Sailor's breastplate, is a knot used for joining two lines.
It is particularly appropriate for very heavy rope or cable that is too large and stiff to be easily formed into other common bends.
 It will not jam even after carrying a significant load or being soaked with water.

As with many other members of the basket weave knot family, the carrick bend's aesthetically pleasing interwoven and symmetrical shape has also made it popular for decorative purposes.
The Carrick bend, also known as the Sailor's breastplate, is a knot used for joining two lines. It is particularly appropriate for very heavy rope or cable that is too large and stiff to be easily formed into other common bends.  It will not jam even after carrying a significant load or being soaked with water.
As with many other members of the basket weave knot family, the carrick bend's aesthetically pleasing interwoven and symmetrical shape has also made it popular for decorative purposes.
Carrick bend