Customer reviews from hydroflask.com
Hydroflask - 40 fl. oz. BPA Free Insulated Straw Tumbler - Trillium
Average customer rating
4.3
(1,472 Reviews)
Rating breakdown 1,472 reviews
5 Stars
1,021
4 Stars
121
3 Stars
147
2 Stars
91
1 Star
92
Customer Reviews for Hydroflask - 40 fl. oz. BPA Free Insulated Straw Tumbler - Trillium
Customer Rating
5
Pink Jelly 40oz 😍
on August 8, 2025
Posted by: Jessica H.
[This review was collected as part of a promotion.] This tumbler is BEAUTIFUL, and the perfect size. I was skeptical about the ability to keep my ice water cold throughout an entire day with a thinner plastic lid, but it does better than my bottles with heavy plastic lids with threading and seals. It’s exactly what I want, and I’ll be ordering more!
Written by a customer while visiting hydroflask.com
Customer Rating
4
Overall a decent cup
on August 5, 2025
Posted by: Kelli S.
Love how cold it keeps my water. I would've gave 5/5 but I'm constantly finding mold in the top part of the straw where it hooks to the bottom part of the straw. I have only ever had water in it
Written by a customer while visiting hydroflask.com
Customer Rating
3
doesn't keep ice cold long
on August 5, 2025
Posted by: Meghan H.
[This review was collected as part of a promotion.] great cup, doesn't leak much, no lead which is great. but it doesn't keep ice cold for more than 3 hours so that's frustrating
Written by a customer while visiting hydroflask.com
Customer Rating
1
Does not keep drinks cold
on August 2, 2025
Posted by: Anonymous
I’ve owned several tumblers from different brands and this is the worst. I think it’s due to the type of cover.
Written by a customer while visiting hydroflask.com
Customer Rating
5
Keeps Drink Cold for Hours
on July 31, 2025
Posted by: Eileen W.
[This review was collected as part of a promotion.] I love this mug because it keeps my water cold all day. My only complaint is that the straw keeps falling off the bottom of the lid, so I need to put it back on repeatedly.
Written by a customer while visiting hydroflask.com
Customer Rating
5
Keeps things cold!
on July 31, 2025
Posted by: Lindsey P.
[This review was collected as part of a promotion.] I recently purchased a new 40 oz Travel Tumbler and I am so happy with it. Where I live, it gets to be 100+ degrees and I left this in my car while I spent about 2 hours running errands. When I came back to a stifling hot car, my cup was still just as full of ice as it was when I left. I have several Hydro Flasks, and I continue to shop here because of the quality product I get!
Written by a customer while visiting hydroflask.com
Customer Rating
5
Ombre
on July 30, 2025
Posted by: Miranda P.
[This review was collected as part of a promotion.] I recently order a 40oz tumblers and had it engraved and it turned out so beautiful I love it and will be purchasing another one
Written by a customer while visiting hydroflask.com
Customer Rating
5
Love the new surf color
on July 30, 2025
Posted by: Frances F.
[This review was collected as part of a promotion.] Fun new color! Of course the functionality of the HF is great (as always). The 40 oz size helps to stay hydrated & handle makes it comfortable to carry around that much liquid.
Written by a customer while visiting hydroflask.com