here's all the discussions with the word "spibelt"
sorry I don't have one, hope you find your answer.
I would check out the spibelt website, but I believe the difference is the diabetic one has a hole for the tubing to go through where the non-diabetic one does not. The diabetic one is more money and I didn't know the difference either so I got the regular one which works fine for me.
I use the regular Spibelt...the only difference is the diabetic models have a small gap at one end of the zipper. It's really not a problem the zipper will not damage the tubing.
The pump spibelt is slightly bigger than the regular one. Both kinds fit my MM522, but I don't really know whether the larger 722, etc., would fit the regular as well. I like the pretty colors on the regulars!
thanks for the replies...I think I like the regular ones better..more colors and all :) But yeah I looked at it closer and I noticed the diabetic one has a little hole for the tubing the regular ones don't.