Excellent workmanship on all the details. The lining is polyester satin with horse print. Pants have a distinct flare leg and collar on the jacket has the extended point of the 70's. Jacket cuffs are shirt style one button. Interior of waistband has shirt holding ability.
Pants were professionally hemmed to custom length (as were all trousers back in the day). Good news because polyester double knit does not hold a crease, and these could be changed with no signs of the previous hem. I imagine this was bought for a Country Western band member but never used.