Review on Insulated Press-in Lid Hydro Flask Mug: Maximized Efficiency and Convenience by Jamie Denison

Good design and pleasant to use. This is a handy device. It doesn't have a way to seal it, so you can't put it in your pocket when it's full. There's also a small dead volume that you can't empty if you're drinking with the lid closed. That means when you finish your drink and put it in a bag, you can expect a few drops to spill out if your bag makes a lot of noise. This doesn't take anything away from the product, but it's good to know if you're using the product.