Ive got a Yamaha "Flame" jacket. Its also made by FXR.
I bought it last fall and wore it all last winter and I was very pleased with it. Its a very light weight and very thin jacket but I was never cold last winter.
Keep in mind as well, I was riding a '90 Phazer II, which doesnt have anywhere near the wind protection that some of the newer sleds have.
Ive actually been very pleased with all of the Yamaha clothing I have purchased. Even other family members who are die-hard Polaris riders have commented how nice and affordable Yamaha's clothing is.
Here's the clothing I usually wear while snowmobiling:
Yamaha Flame Jacket, $180 (made by FXR)
Yamaha Value Bibs, $90
Yamaha Team Gauntlet Glove, $50 (made by FXR)
Yamaha Team Cross Glove, $35 (lightweight MX style glove for warmer days)
Yamaha fleece baclavia, $10
Z1R Rail helmet, $130
Scott HighVoltage Snocross goggles, $50
I dont wear special snowmobile boots because its almost impossible to find boots that dont look like snowboarder boots. I just wear plain ole packboots that I buy from any outdoor store.
The jacket that I have does not have a liner in it, but it does have vents in the side you can open if you are a bit warm. Ive never had a problem with being cold with this jacket. I even once forgot to zip it back up after stopping at a local eats 'n drinks establishment for lunch and didnt even notice. The only way I did notice was that I felt something flapping aganst my chest. Believe me, trying to zip up a jacket while doing 50 mph on an old Phazer while trying to not fall off is quite a feat in balance. Sure, I could have stopped but Im not certain that the Phazer had enough speed to catch back up with the group I ride with. They all do in excess of 80 mph most the time, but I could usually catch up when we hit the corners.
Hebi