Bought a long strap with quick release ends. It's super comfortable with a full-frame DSLR, battery grip, and a heavier 70-200mm hanging off of it. It was exactly what I needed. The nubuck is soft with no bite or rubbing on my neck, and the extra fuzzy grip keeps things a little less chaotic if you're, say, cycling around your city with your camera.
The only caveat is if you own a Canon, consider just getting the regular fastener, and getting the Peak Design adapters if you really want the convenience. The quick-release straps fit through the holes, and it's fine once they're through, but getting them through that one recessed loop on the right side of Canon DSLRs can be a pain. Rethreading my stock Canon strap feels more convenient, especially if your fingers are freezing or if you can't see.
Great products - I first ordered the standard 53s around 4 years ago for my DSLRs, and the were so good I ordered new ones when I converted my kit to mirrorless. Excellent leather products, beautifully produced.
Best Strap I have ever owned comfortably holds a Nikon D7500 with a 200 to 500 zoom lens!!
I love my new camera strap in dark mocha. It’s a beautiful color. And the strap is comfortable and supple.
Stats: Standard 53 in "Long Version" in Chestnut, Green stitching (love it,) no personalization, and I opted for the quick release (happy I did)
For me, this was one of those things that I did not know I needed it until I used it for the first time. I use a Canon 7D Mark II with a 100-400mm II. All in all, my rig weighs in around 5lbs//2.5kilos. It's a lot to ask of my scrawny little arms to carry such a heavy piece of equipment for extended periods of time, and the Canon stock strap is not really conducive to comfort. The Standard 53, however, really nails it out of the park with its high quality leather and 2" wide design. I seriously cannot emphasize enough just how critical it is to have a strap that is wider than the width of a stock strap. 2" really distributes the weight nicely over your shoulder and keeps fatigue at bay.
My inaugural trip with my strap was to Shenandoah National Park. Over the course of a 2 mile hike, I utilized the strap cross-body to hold the camera. I was happy I opted for the "Long" version, as this put the camera at a good height to be walking. The adjustable straps were very useful and not difficult to use (Justin's Video on YouTube is very helpful and walks you through both the installation and adjustment stages.) The camera had minimal swinging around as I walked, and I felt very confident that the strap would hold up and not drop my camera. The integrated locks that are on the strap are also a nice feature and are easy to use. That webbing that the straps are made from is some serious stuff- look up the video on YouTube of Justin trying to cut it. This gave me peace of mind when I took the Camera to Washington DC several days later. The following week, I went to Mammoth Cave National Park with my 7D Mark II and a Canon 24-70mm III. Still pretty heavy, so the strap really came in handy, especially with all the walking in the cave. I used to bring my camera backpack on walks/hikes, but now, I think those days are over. I leave the bag in the car and just but the strap over my shoulder. This is extremely liberating, and helps me stay cool. It is utterly wonderful not to have anything on your back as you are trying to integrate yourself into the forest around you.
I need to take a moment to point out the benefit of "chestnut" in particular. If you know you want a strap that slides well against your clothing, chestnut is a great pick. I wear both cotton and polyester shirts, and my strap does not stick very well to my clothes. Personally, this is essential, as I want the strap to slide as I pull the camera up to my eye for a quick shot. My friend came on the trip to Shenandoah with me, and had just purchased the strap in "Mocha" as well. Mocha is a beautiful color, and still slides well, but chestnut might be better if you are looking for the best in side-ability. I reached out to Justin personally for his advice on this, and this is how I came to this conclusion on what to buy for myself.
Definitely, definitely take their word that if you are above 5'7, you will want the long strap, provided that you're looking for the cross body function.
The last thing I will mention is durability. The strap definitely obtains "character" quickly, but this does not mean that you need to baby the strap at all. Just be aware that it is indeed genuine leather and will behave as such. You will start to see lines in the material if you fold it. It will react to the sun. I have not gotten it wet, so I cannot speak to how it responds to liquid. Just be aware that it will start to change appearance soon after you start to use it.
TL;DR: Get it, especially if you don't have anything better than the stock strap. Great for walking around. Shipping with DHL was fast (I had free express shipping.) Cheers.