My parents each purchased the 30 oz. I bought the 40 oz. Not impressed at all with the straw not flexible & stationary in the center not on the side where it's easily reachable. Had I not had it engraved i would returned it already.
we own and use multiple types of hydroflask tumblers and this travel tumbler performs the lowest as far as 'keeping it cool time' goes. we think its due to the lid...