Alpinestars Stella T-GP Plus R v3 Air Jacket The Stella T-GP Plus R v3 Air Jacket is a versatile sport-riding jacket that blends abrasion-resistant textile with panels of cooling mesh. Hard external sliders at the shoulders both look and act the part to shrug off abrasion, and the jacket can be paired up to Alpinestars riding pants to create a riding suit via the full circumference waist zipper. Nucleon Flex Plus impact armor is included for the shoulders and elbows.