Protein shaker bottle 700mls "Tumbler View" Matte White/Black Window

Great bottle for my protein shakes. Easy to see levels on the sides and easy to clean. This is now my go-to bottle that I use daily.

Good concept but have to shake it a lot more than normal and even then doesn’t always dissolve powder that well. Much easier to clean but my lid doesn’t come off like it’s supposed to so imagine that will get smelly in time.

Few issues, I’ll admit so far it blends well however the measurement lines make no sense, it isn’t clear whether the top or the bottom is supposed to be the amount and when I tried to check with a measuring jug it turned out neither actually matched so it’s useless for measuring volumes. Secondly I got the white one and within a couple of uses it already has random marks and stains