The STRAP handle is made of black, woven nylon. The strap is mounted as a loop (mounted with a painted, black screw on the back of the front) and it can be positioned vertically on either the right or left side of the front.
The straps can easily be removed and cleaned in a dishwasher at a maximum of 50° Celsius.
This handle is only available for this design, and is not sold separately.
Here's product pictures of the handles for BIG fronts: