Review on PerfectShaker Ironman Shaker 28 Ounce by Michelle Bonner

I needed new shakers for my protein shakes and other training powders and this bottle does the job perfectly. I've had other blenders with blenders, but I rarely use the jack or blender ball. With this bottle, the mixing mechanism is permanently attached to the cap (but is removable), making it easy to clean and use as a whole. So far I haven't had any issues with leakage and it seems to be holding up well to daily use after about 2 months. I've had other blender bottles that always cracked at the top of the lid, causing them to leak profusely. I am optimistic that this will not happen with this bottle design. I'm also a huge Marvel fan, so a bottle of Iron Man makes it that much cooler. Definitely recommend.