I have a blue wrist band one. I wore it all last summer while riding and had a nice stripe across my wrist from not getting sun there. LOL

Plus my hands were white and arms tan, from the gloves. LOL

I carry it with me every time I ride. If I don't feel like having it on my wrist then I strap it somewhere, but I always take it. The velcro on them is very strong so your not likely to lose it anywhere.