Abstract: A combination high visibility safety vest and hydration bladder system includes a vest having a pouch along its back side capable or receiving and holding a bladder portion of the hydration bladder system. The pouch includes raised inserts along its exterior to raise portions of the pouch away from the user's back. The vest also includes a background material made of a daytime-visible fluorescent color and nighttime and light reflective material positioned thereon to increase the visibility of the user to others. The vest includes tear-away straps and seams to increase the safety of the user if the vest is entangled. The hydration bladder system includes a bladder that can be filled with fluid in an insulated pouch. The hydration bladder system provides hydration to the user by way of tubing coupled on one end to the bladder and on the other end to a mouthpiece.