Been in the single digits recently here. -10f just a few days ago. We use kinkos lathered with sno seal and heated to soak it in, process repeated twice. They are leather, and Open gauntlet allows one handed removal and reentry. There are a few varietys with respect to color and gauntlet style. I don't think they are $30 most hardware stores have them here. Bought the crew each a pair...right your name on them. A buddy told me about them when I joined ski patrol 10years ago. They put most any $100+ ski/alpine glove to shame with respect to wear, warmth and just plain user ability , patrollers take gloves on and off all day. I have destroyed many $100+ gloves. A pair of kinkos lasts me about two years.
It does take a while to break them in so they work well in a top handle. Once broken in man they are the tits.
A trick on the silly cold days (single digits) is to slip a hand warmer on the back side of the hand, the gloves keep them there nicely while wearing them and the gloves are toasty when they have been off.
Cold weather tricks...right from the start over dress in layers, Over heat the core. Swing relaxed arms to pump blood into hands. My hands never get cold for more then a minute, mainly extended pistol grip use in bucket. Cold hands are for amateurs!