Vertx has produced a great video showcasing the features of their Smock.
In addition to some features that are now considered standard for this class of shell, it has some unique add-ons not found anywhere else.
-Manufactured from Storm fabric which is a light-weight Soft Shell 40 Denier nylon 2-way stretch laminated to a Wicking/Anti-Microbial Knit that is NanoSphere® treated for a permanent highly water resistant finish
-Mesh lined dual pull pit zips
-Mag pockets inside chest pockets
-Skirt mounted mag pockets