Are we talking about genuine cold weather riding? Like we get here in Maine? Yes layers, but too many layers are bulky, making it harder to move. For me it is Irideon Wind Pro breeches, usually a turtleneck and a sweatshirt. Then a medium-weight bright red Mountain Horse jacket I got for about $40 from (the old) Tack of the Day. If it’s really cold, I have a heavier Mountain Horse coat, which is longer than the jacket with vents and covers most of my thighs. Irideon has a thin headband, Chinchilla, that will fit under my helmet and keep my ears warm. Feet: Smartwool socks and Ariat insulated H2O Terrain boots. I use nylon lined leathers and don’t need chaps or insulated tall boots. Hands were the hard one for a long time. SSG insulated leather gloves. But if it is really cold, Mountain Horse mittens, the 3-finger style. I have to put the bridle on with bare hands. Those mittens actually warm my hands up, including my pinkies, in 5-10 minutes. Expensive, but the best part of my outfit.
We get spells of weather with high temps below 20, sometimes around 0, overnight well below 0 for days on end. My lower limit is around 15F, which is where riding can begin to affect the horse’s respiratory system. To say nothing of my asthma. We have a huge indoor next to a 40 Acre hayfield. The BO’s husband maintains a path around the perimeter so we can enjoy riding outside in the sunshine. If we get nice fluffy snow over a good base we can gallop in the snow, which is one of my horse’s absolutely favorite things to do.
The BO put in heated Nelson waterers outside years ago, the smartest thing she has done. The pipes are below the frost line so they don’t freeze and there is a generator hookup… Husband checks out each unit before it freezes and keeps parts, including heaters, on hand for occasional problems. If you can swing it put them in. I like not having to worry about water consumption and hydration for pasture board. It’s a lot more fun riding instead of dealing with hoses, tank heaters, hauling buckets and pounding ice. Imagine it’s 5 below and you have to abandon the house to do outside water. That’s a different outfit that usually includes Carhartt overalls and Muck boots