Yes, they still issue muklucks in addition to bunny boots. Mucklucks are warm as long as they are dry. They don't offer any support to the ankle or the sole however. I use them only for flying, since they are approved. As cold as it may seem up here, it's generally still warm enough to get your feet wet most of the year. Muklucks suck for that. Also, I tried using them while snowmachining, an found them to be very uncomfortable for arch support (lack of), and my feet were soaking halfway through the day. Bunny boots will also soak your feet (through sweat), but you can dry them out with fresh socks and be good as new in 5 minutes.