The Commerce station is located in southwestern Paris' 15e. It serves metro line 8 in fare zone 1.
As you can gather from the name, the rue de Commerce (after which the station is named) in the Grenelle district is a shopper's paradise. It is a mix of high and low retailers that includes Brunello Cucinelli Cashmere, Michel Perry, Diane von Furstenberg, and Chantal Thomass.
Some additional areas of interest near the station are the place du Commerce and the Eglise Saint Jean Baptiste.