I've used several. I'm currently using an Outdoor Vision one and it works really well. However, my favorite has been the Allen bino cover. I know that isn't the cool answer and it sounds absurd but, those dang $10 harness's are the most comfortable, best functioning deals going. They hold the things tight to your chest. No bouncing and the pouch is WATERPROOF. My only reason for not using it all the time is once it gets to 20 or below, the neoprene cover gets stiff and loud sometimes. Not a problem unless the animal is close but, it could happen. If it's above 20, I use it every time over the other two that are expensive. It just works very, very well and, is by far the most comfortable. God Bless