LensCoat® Canon RF 100-400mm f/5.6-8 IS

I was worried the cover would make the lens feel bulky, but the fit is so precise that it still slides easily into my bag. The textured surface really helps with grip on humid days, and I've already bumped it against a metal railing with no damage.

The wrap adds just enough bulk to feel protective without making the lens awkward to grip, and I love that it breaks up the silhouette enough to get closer to birds before they spook. Took a few scratches on a rocky trail that would’ve hit the barrel otherwise, so my resale value’s safe.

The material feels thick and durable, and it’s cut perfectly for the RF 100-400mm—no flapping or loose bits. I’ve already noticed fewer micro-scratches from just setting it down on rocks.