Does the Flex Straw lid leak in a bag?

The straw folds down and the lid is designed to seal, but owners report that worn gaskets can drip over time. Keep it upright if the lid is old.

Will it keep drinks cold overnight?

Yes. The double-wall vacuum insulation holds cold for many hours, and owners commonly report ice surviving a full day.

The bottle itself handles hot liquids, but the straw lid is meant for cold drinks. Use a different lid for coffee or tea.

Yes. The wide opening takes standard ice cubes and most water filter attachments.

The bottle is dishwasher safe. Hydro Flask recommends hand washing the straw lid to protect its seals.

Both insulate well. The Hydro Flask adds a folding straw and handle, while the Rambler is often praised for a tougher finish.

At Tillys, for $35.97, 20% under what the other stores charge, as of our latest check.

Rated 4.4 out of 5 from 2,500 ratings.

10 stores we checked sell it, including Tillys, Grove Collaborative, Nordstrom, Academy Sports + Outdoors, Backcountry.com.

$35.97at TillysChecked Nov 13

20% under what the other stores charge

Compared across 5 stores. Prices are checked against each store and labelled with when.