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I find that non cycle specific gloves are much, much better at keeping you warm. I used to just wear M&S leather gloves. They would fall apart after a couple of years but I was never cold. Then I moved to merino inners and either Grip Grab things or SealSkinz winter gloves and neither combination is as good as a cheapo pair of thinsulate winter general purpose gloves. See also bike lights/torches.
there is ! i suffer from codl habds and feet, and basically i started looking outside pure cycling brands
Arc'teryx has some super insulated and wind/waterproof gloves : Venta SV, Zenta LT (GTX), and the expensive Caden which has a removable liner. if a bit bulky, these are ok to use on bikes. i personnaly tried the zenta when hiking and cycling
a cheaper brand Roeckl ( i use this brand some when crosscountry skiing )http://www.roeckl.de/en/products/biking/winter/glove/ventoso-gtxR/ Veneri, Ventoso gtx, Vreden. i have the Vreden, and it's very insulated albeit non gtx, so can end up soaked.