is a sled helmet the same size as one you would use for snowmobiling? I would say probably not.
I ordered this for my husband for Christmas and it was one of the few we tried that fit him in an XXL (he's 6'4'' and 260lbs) Sleeves were very long, body length was great and it looks sharp.
I can't comment on durability yet but I was impressed with the detailing, fabric and seaming reinforcements. Also, the hood is roomy enough to go over a helmet, which I thought was a nice touch. He's been testing out warmth walking around NYC and says it's plenty warm. But that said, he's been known to ski in just a vest + thermals over 20 degrees.
If you see a very large, beared man in a bright orange jacket at Alta, it's probably him. He said he was tired of black or grey and I made his wishes come true.