front panel 24 as specifically illustrated in fig3 with signal device 10 secured to vest 23 a person will wear the vest in the normal manner while water skiing should the wearer fall from the skis and go into the water all the person need do then is to reach for enlarged knob 19 and pull upwardly causing slidable annular member 29 to slide down telescoping portion 14 and extending telescoping portions 12 13 and 14 so as to place flag 26 in a position as indicated in fig1 in this manner the water skier can be easily seen in the water through observance of flag portion 16 so as to be rescued as well as to indicate the exact position of the water skier so as not to be hit by another boater in the foregoing description cover 20 was described as being composed of a mesh pastic cloth and two u shaped members 17 and 18 were described as being composed on one side of a hook and loop cloth type material and with adhesive on the other if desired other types of materials could be employed to provide the attachment means such as one piece of canvas or duck cloth which could be sewn.