I have the plain old fashioned wrist band in yellow. I actually have 2, since I lost one and ordered another. Finally got DH to wear one, especially important for him, as he takes Plavix and has 2 stents. Now I have to get DS to buy one.
I bought the wrist band because I had read that emergency personnel usually look there first. I developed a new allergy since I got the band; I suppose I should get a new one...