DarkTac 'Mamba' 2 point sling
You're the guy with the heavy gun for whom every padded sling failed so far? Try the DarkTac Mamba with 20mm thick, 70mm wide padding, suitable even for the heaviest guns out there! The upper side is made of 1100D Cordura for durability, the bottom is covered with 3D mesh for ventilation and moisture reduction.
In case you would find the padding too soft or too hard, you can change the padding material any time; just cut your padding to size and put it in the sheath of the Mamba.