The rubber is a lot less affected by heat and humidity than a bracelet, while it is more resistant to water than leather. It looks a lot better in person than in the photo, as well. I like the way the rubber fits against the case, although the little bubble in my strap was caused by the ABS inside that fits the rubber against the case. But I admit it took me a little bit to come around to rubber. I was worried it would be like the plastic straps on my old Casio, but it is, in fact, very comfortable.