Are you referring to the below the knee length hooded parkas the football team wore in the 70's?
Those disappeared for a long time. About two years ago or so Aggieland Outfitters made a run of those and my brother, wife and I picked up one. You made talk with AO and see if they have any plans to bring those back.
They are the knee length hooded maroon parkas with Texas Aggies on the back. Saw a lot of them at the Ole Miss football game this year. Was told by someone they were only sold during baseball season.