Bauer GSX Junior Parkas. The GSX Junior Parkas are the only Bauer model in this age category. The GSX series is neither Supreme nor Vapor, but it is a completely new series that combines the most popular of the two families. In this case, it's the flex of the Vapor parkas and the shape of the Supreme parkas. Here, you'll find the simple TUNE FIT closure system and the Butterfly Assist cushion, which provides additional support for the foot. Last but not least, the 115° angle allows for a greater range of motion thanks to the flex.