The 40-ounce Hydro Flask Travel Tumbler is on sale at Amazon for $25.97, down from the regular price of $39.95. That's a 35% discount.

With the Hydro Flask tumbler, you only have the option to drink out of the straw (if you want to keep the lid on, which you most likely do), but with the Stanley's FlowState™ 3-position lid, you ...

Hydro Flask’s stainless steel ... a leakproof lid, and a straw that ... Kick off the new year on a bright note — especially if you’re a ride-or-die Hydro Flask devotee. This vibrant pink 32 ...

The dishwasher safe tumbler uses the Hydro Flask’s TempShield double-wall insulation to keep beverages hot or cold. It also features a splash-resistant Press-In Straw lid and flexible straw.

Lids: The main design difference is in the lids. With the Hydro Flask tumbler, you only have the option to drink out of the straw (if you want to keep the lid on, which you most likely do), but ...

With the Hydro Flask tumbler, you only have the option to drink out of the straw (if you want to keep the lid on, which you most likely do), but with the Stanley's FlowState™ 3-position lid, you ...