A little over a year ago, I started collecting all the information I could about the jackets worn by the Rebel Snow speeder pilots in "Star Wars: The Empire Strikes Back". I was intending to use them for my own use, but there are several people who are also highly interested in this jacket so I decided I would compile the images I've collected into a blog post to share. I cannot remember where I have gleaned all of these images. I do remember that the majority of the detail shots and screen shots of the actual jackets as seen in "Empire" have come from Darth Lars, who has a wonderful jacket tutorial up in the Pilots forum of the Rebel Legion.
Here are images of Luke and various Rebel pilots wearing the jacket in the movie:
Behind the scenes shot:
Here is the original Ceremonial jacket from "Star Wars: A New Hope" which is similar, but different:
I cannot remember where I found these online, or even which show/movie these images are taken from [*Edit: I believe they are from the TV show "Space: 1999"], but it was noted that these are the same or similar jackets as what was used in "Empire" :
Obviously, if they are the same jacket, the "Empire" versions have been altered. I do believe the base of the Hoth Snow speeder jacket was some sort of "off the shelf" jacket from the late 1970's that had been altered slightly, which was quite common for the first 3 Star Wars movies.