I have been using SPI Belt products since 2012. When I found out they had one with a window for my phone I had to jump on it. I had used other brands but they fell apart with in 2 months of using and I WAS SO EXCITED to get a quality belt from SPIBELT. The belt I got came apart at the seam with a month of use, I run 4 days a week. I was quite disappointed but I contacted support they asked me to email a photo of the defective belt and they sent me a new one the next day. I received the new belt in 2 days and that was in February of 2021. It's now October 2022 and the replacement belt is still as good as the day I received it. I run 3-4 days a week and I can't think about running without this belt. I absolutely love it.
Love the comfort and fit.
I have been SPI Belt user for over 20 years and this one is the best...