Wonderful value for money wave-style (used widely by Japanese brands on their divers) silicone rubber straps that are soft, flexible and very comfortable. They come in black and orange and in 3 sizes (18-20-22mm) and with 1 wide floating keeper. Their length is approximately 95/140mm. I will include a pair of good quality spring bars with each strap. Feel free to contact me for whatever questions you might have.
Extra: Try my Localtime FKM Wave straps with Quick Release bars (last photo), listed separately in the store.