The mass of the massive gauge bosons, the W and Z bosons.
Edit: there is an excellent in-depth (but math-light) explanation about the Higgs mechanism by Leonard Susskind. I highly recommend it if you are interested, it lasts about 1h (plus some Q&A) and is extremely approachable, while being presented by an established authority in the field.
unless im wrong (im not a physicist) interaction with the higgs field does give a none zero amount of mass to quarks. but the vast majority of mass of a proton ~99% is due to the energy in the gluon field
