Agents Of S.H.I.E.L.D. Maria Hill S.H.I.E.L.D. Agent Girls Tanks Maria Hill and Tony Stark team up to keep S.H.I.E.L.D. running with the Marvel Maria Hill S.H.I.E.L.D. Agent Heather White Racerback Tank Top. This soft light gray Marvel tank top features the S.H.I.E.L.D. agent, Maria Hill, in a distressed black and yellow print and reads "S.H.I.E.L.D." below her. 50% Polyester, 25% Cotton, 25% Rayon.