LENSCOAT® SIGMA 500MM F/5.6 DG DN OS SPORTS

The fit is snug and precise around the lens barrel, and the texture gives a solid grip even when my hands are sweaty from hiking. It's clearly going to take a few dings on rocks and branches instead of the finish, which is exactly what I wanted.

Bought this mainly to keep the barrel from getting dinged in my backpack, and the coverage is snug without adding much bulk. Took it out on a rainy shoot and the extra grip layer actually made handling the long lens more secure.

The fit is spot-on for the Sigma 500mm, and the material feels tough enough to shrug off scrapes from a camera bag. It went on without any wrestling, which I didn't expect from a cover this snug. My lens finally feels protected on rocky trails, and the resale value worry is gone.