I admit to being a bit of a Gore ***** when it comes to outer layers and so far this season I've had success with the Tool Windstopper between +5 and -14 C this winter. The +5 was far too warm for them but Calgary does have some wild temperature swings. The -14C showdown was handily won by technology and because I bought the XXL gloves a pair of smartwool liner gloves comfortably fits underneath for the upcoming cold months. Below -25C I'll probably have to wear my nonbreathing snowmobile mittens (with pockets for chemical heat). The gloves fit small, ordering online is a trail to tears unless you know your Gore size already.