FLOWSTATE TUMBLER-STANLEY

H2.0 FlowState™ Tumbler. Specifically, this one is the 40 oz (1.18L) version in a matte black finish. It’s basically the "it-cup" of the decade for a reason—it fits in most car cup holders despite its massive size, and it keeps water cold for a surprisingly long time.
​Here are a few things that make this specific model (the H2.0) a step up from the older versions:
​Key Features
​The FlowState™ Lid: The rotating cover has three positions: a straw opening designed to resist splashes, a drink opening for sipping, and a full-cover top to minimize spills.
​Vacuum Insulation: It uses double-wall vacuum insulation to keep drinks cold for 11 hours and iced for 2 days.
​Recycled Material: The H2.0 series is made from 90% recycled 18/8 stainless steel, which is a nice win for sustainability.
​Ergonomic Handle: The handle has comfort-grip inserts on the inside, making it easier to carry when it's fully loaded (and a 40 oz cup of water is surprisingly heavy!)