The hydro itself is so pretty, the color is gorgeous and it keeps my water warm but the biggest issue is the straw. It leaks water and if I keep the straw down for a couple hours without washing the lid or using a tissue to clean up the excess water in the indented part where the straw sits closed it WILL grow this green algae looking mess. I also had an issue at Disney where the hydro was on its side in my boyfriends backpack and all of my water leaked out into the bag.
[This review was collected as part of a promotion.] The straw flip on the lid isn't very tight and only will drink if all the way back. Bottle is cute but lid is defaulty.
I had my eye on the seasalt hydro flask for a while, so I had to buy it when it finally went on sale! It is beautiful in person and works great, just like my others!