Cirkul 40oz All-Day StrawSip Double-Wall Insulated Stainless Steel Tumbler with Handle, Carbon (Black)

I loved the look of the cup, it's nice and clean with the clear plastic lid and the cool Grey color, it works awesome, you don't have to tilt the bottle back as it has a built in straw but you do have to set the flavor setting between 6 %26 7 to get a good taste of what ur drinking

Cirkul 40oz All-Day Strawsip Double-Wall Insulated Stainless Steel Tumbler is pretty great. It looks exactly like a Stanley down to the grip on the handle. Only difference is the top which is made to accommodate the Cirkul sip cartridge. I've had it for 2 days now. I did an ice test and my entire tumbler full of ice dwindled down to a huge clump of ice after 24 hours. So far I have refilled it with water 3x on a setting I toggle between 4-6. That's more than I usually get out of my 22oz insulated squeeze bottle. I'm assuming because you don't have to tip this upside down and chug, rather, just casually sip from like a regular straw. It is also a lot more quiet. So far I am loving this purchase. The first picture is just my tumbler with us up to the inner line. The second picture shows what the ice looks like after 24 hours in a 72° house. Stay hydrated, my friends!