22oz. Plastic Water Bottle Starter Kit with Black Lid, 4 Energy Drink Mix Flavor Cartridges, Zero Calories and No Sugar (Florida Man, Send It, Blue Magic, Nocturnal)

Love the cirkul water system. With a 22 ounce bottle I can fill 5 to 6 times with one cartridge. The bottle is very sturdy and easy to hold because of the shape. I drink much more water since I’ve started using this system. I absolutely love it. Highly recommend.

I use this to help me drink more water through out the day.. flavors are good!

I liked this bottle. It was a cool black one. However at work I must have misplaced it somewhere, and RIP to it.The cartridges only work on the bottle (I think) and to recoup the cost on my house cups it was moot.Other than that as far as complaints if any... They don't last a long time if you have it anywhere above a flavor strength of 3-4.Good job Cirkul I'll buy another one of these to replace :'(

I got this for my son during basketball season! He loves it. It’s a great way to keep him hydrated and not spending $3 on Gatorade ever game and practice

All the kids at school were applying pear pressure to my kid to get a cool water bottle. I bought this for her not knowing each cartridge has enough caffeine for three energy drinks. She was up for two days before I figured it out. Safe for adults.