I'm very happy with this water bottle. It's so comfortable that a few times I found myself checking to see if it was still there.
I've been running with your belt and 8oz bottles for 6-8 years (I could be off a little). The bottles became cracked so I ordered 2 bottles of the newer version and they are without a doubt an improvement over the older version. The old version's nipple system relied on squeezing the bottle, but fluids would remain in the nipple between the barrier and the liquid and required periodic cleaning...I used Qtips, but it was really gunky in there. The new version nipple requires pulling the nipple up to get to the liquid, but liquids don't get caught up and its easier to clean up when finished. Until the belt starts to frey I'm good for several more years to come. Good product and well made.
fits perfectly on the belt and hugs the body. Very comfortable!
Love this bottle! Clips on your pants or belt and has minimal bounce.
I own many SPI belts. All serve a purpose and I share with other runners at events. The little water bottles are great to even carry. Fun designs!