Top of the line gear is Klim, Motorfist, and Reima. Klim and Motorfist require layering to achieve warmth. Mid line is Fxr, Arctiva, Hmk. They are a bit cheaper in cost and dont offer the same breathability as the first 3. They do offer a wider range of insulated clothing. Leather is great for warmth, but low on breathability. Determine your riding style and ventilation needs, and you budget. I stay off the trail, so I run a wicking layer, body armor and a shell to -15, and add a thin fleece layer for anything colder. Trail riding with what I wear will require another layer. Hope this helps