I gave up on bike-specific gloves - they're stupid expensive and none were warm enough. Fwiw I have Renaud's syndrome which means my hands and feet are always cold. A couple years ago I started using snowmobile mittens - mine happen to be Burton but pretty sure any brand will do. Mine also have chemical handwarmer pockets which I used last year. I wear a glove liner underneath and vary the weight based on temp. I picked up these Seal Skinz this year and they're really warm (enough that I haven't used warmers) - so far this year coldest is 19F, 4F windchill. It's a process of trail and error - good luck!