Simple Shell JacketDESCRIPTION ACRONYM 2022 23 Autumn Winter Collection. This new shell garment features a minimalist design compared to the J1. It features an asymmetrical design with a layered left sleeve. The latest Gore tex proshell is used for the material, and this stylish operation jacket is packed with ACRONYM features such as an escape zip, force lock jacket sling, etc. The hood can be stored in the collar and can be worn in different styles.