Love the smaller size I originally purchased the M30 but it was too huge and heavy especially when full. The M15 is the perfect size for me

Fantastic size! Much more manageable than the large one. Greatly improved magnetic opening "stays open" you don't have to wrestle with it. And love the little sleeve pocket on the back.

I purchased the Hopper 15 intending to use it for keeping food and drinks cold during long drives or trips to the beach, etc. On a positive note, it is well-built, sturdy, and comfortable to carry. I really like the magnetic closure on top instead of the zippers used on previous versions. It keeps items cold and performs as advertised.
My biggest disappointment with this cooler is how difficult it is to load or unload. If all I used it for was ice, wine bottles, and cans, I think it would be fine. However, the footprint is small which makes it hard to load items like Tupperware containers or styrofoam boxes. Forget being able to keep containers upright while loading?.its almost a 2-person job. This Hopper fills up very quickly, especially with yeti ice or cold packs placed around the containers, and you also need to leave enough space on top of your items to fold and seal the closure, so the usable space seems quite small. In addition, there is a lot of excess material on the inside making me wonder if the insulation layer is sufficiently sealed.
Overall, it's a good product for ice and drinks. For anything else, I'll stick to my Flip18.

Great size for the car/every day use. This version is surprisingly better than the original zip-top.

Great bag, hold the cold well and easy to tote around.

Great color for lang days in the sun. Why are they cancelling it?
Pricey, like all Yeti products.

I love this cooler so much! It truly was EVERYTHING I was expecting and more! We use it for lake days where it's sitting in direct sunlight for hours and the ice blocks stay solid the entire time. Once again, I'm truly amazed by the quality that Yeti provides. Without a single doubt it is worth it!

I haven't used it yet but looks great light-weight

Trip very difficult to fold over and secure. Well made but as an older person it took two of us to fold over the top and secure.

Great colors, and a good sale price! I have had other coolers that don't do the trick. I have purchased two Yeti coolers for my son that he loves. I have several Yeti Rambler cups that I treasure, so decided to take the M15 Tote plunge. As I mentioned, I love the colors and design of the cooler and followed it until the price dropped before buying. I haven't used it yet, however even empty it feels a bit heavy. Upon opening it there was a strong plastic scent inside so I have aired it out open and it seems fine now. I'm hoping it proves to be just what I needed for my cooler needs.