Nathan Nutrition Flask with Race Cap - 8oz

The Nathan Hydration belt came with 4 8 oz. bottles, 2 with nutrition cap and 2 with more traditional 'pull up' cap. I use the bottles mainly for running long distances (training for half-marathon). I was used to the 25 oz. Camelbak but grew tired of cleaning it and had a hard time knowing how much water to ration on long runs. These bottles are top rack dishwasher safe. I ran 10 miles with it the first day and had no problems. They don't noticeably bounce. They are easy to pull out and put back in the holster. I use the front 2 when I am running, and then when they are empty, I easily shift them to the back and move the back (full) bottles to the front. I also use 2 for water and 2 for sports drinks on my long runs. I even ran a 5 mile race and had no issues.

I lost half my water in the first 3 miles. Amphipod(sp?) 10oz snap on bottles will fit this belt fine. Cheaper than buying whole new setup.

These are sold for gels but I LOVE them for water usage! Great that you can just squeeze and don't have to pull out the cap while you're running. I've purchased extras too because when you buy the belt originally it only comes with one bottle with the race cap. Careful though - I had a full one on the counter that fell off onto a wood floor and the top broke & cracked :(