I got a pair of these for cold weather riding, aka 45'f and lower. Love these gloves! With the zipper they are easy on easy off. If your hands get a bit too warm you can unzip them to be a bit cooler. For me they are too warm if it's above 50'f and I'm riding above zone 2. After using them once I went back and got a pair for my Wife as well.
These are now among my favorite cold weather gloves. A good outer shell and well insulated, they also have a zipper on the back of the palm that makes it easier to get them on and off and when you've been riding for a while and hands have started to sweat. I have worn them down in the high 30s and in the 40s with a light rain. Great gloves.
