Alpina neoprene "overboot." New design for 2010-2011. Style for is lower-profile, waterproof and more amenable to racing and training. Stay warm and toasty when the temperature drops this winter. These are insulated overboots that fit either skate or classic boots.
European sizing 38-46 even; if you are size 39 order 38; size 41 order 40...etc...
Keep skiing comfortably when the windchill increases. Check out the 09-10 version - it is almost identical, but silver instead of gold.