If you own a Swarovski scope this is a must have item. It fits the DS scope very well and offers a great degree of protection. It really should come included with a new scope purchase but it doesn't. I do not like the clear lens covers that come with the scope. I much prefer this. For a scope cover it's way overpriced but it's also a Swarovski, so that's just how it goes. I recently used it in the rain and snow and it worked good enough to keep the scope dry. It's not waterproof but it still helped a lot. The main advantage to a cover like this is to keep the scope from getting scratched from branches and dirt/leaves from getting on the lenses. Just get it, you need it.