the Everlast pro Style Training Gloves be a decent pair of glove to train on the heavy bag with . they be ok for spar but I would prefer something with a little more padding . the only slight issue that I have with the glove be that they be a tight fit with wrap on . I use the evergel 120 '' speed wrap and it be a little hard to get the glove on . I do not have big hand I have average size hand . so if you have big hand I would try look for a different pair . overall , it be a good pair of glove for hit the heavy bag . I would just suggest to get a thicker pair of glove if you want to spar .