Although he's only 3rd in the green jersey standings, Marcel Kittel (DEU/Katusha-Alpecin) will be the wearer of it on stage 2 as the actual leader in the points classification (Gaviria) is wearing yellow & the runner up (Sagan) prefers wearing his rainbow jersey...
Stage 2: Mouilleron-Saint-Germain > La Roche-sur-Yon (183km)